Pests that destroy crops

What Are the Different Types of Crop Pests? (with pictures

  1. Insects are the most common and destructive, but mammals, like mice and raccoons, are also be considered crop pests in some areas. Birds are another example of a crop pest, since they can damage plants by eating seeds and fruits as well as by hunting for insects hidden in the plants. Raccoon and other small mammals can be a pest to some crops
  2. How it Kills: Stem borers are caterpillars that eventually turn into yellow or brown moths. Larva feeds inside the stem causing drying of the central shoot called dead heart in young plant or drying of the panicle called 'white ear' in older plants
  3. ating seeds, roots, bulbs and tubers are the wireworm's favorite meals. European Corn Borer. The European corn borer has been a pest of crops in the Midwest since the Twenties and destroys a variety of crops and weeds beyond corn, including cotton, apples, soybeans, peppers and ragweed. Yellow Dog Tick

10 most deadly bugs that destroy crop production - 10 most

  1. Here are the top 5 pests that are known to attack plants in the garden. 1. Aphids - Aphids, tiny, pear-shaped bugs with long, slender mouthparts, aren't picky. They bother members of nearly every plant family in North America, including shade trees, flowers, vegetables, fruits and ornamentals
  2. Crops damaged: Asparagus. Signs and symptoms: Brown, scarred, or bent asparagus stalks. Defoliation of ferns. Control measures: Hand pick adult beetles when they first appear, and larvae later in the season. Destroy beetles by dropping them in a can of soapy water. Use a soft broom to brush asparagus plants and knock larvae to the ground
  3. Adults are yellow-orange beetles with ten black stripes on wing covers. They're found on potatoes, tomatoes, cherry tomatoes, eggplant, and petunias throughout North America. These beetles..
  4. ers are destructive pests that suck sap and feed on the leaves, causing white tunnels or trails on the crop. The adult insect is a grey or white fly while the larva or maggot is a greenish yellow caterpillar with a pair of black mouth hooks. It is well known to cause great damage to beet, spinach, and chard
  5. Wash plants with a strong spray of water to dislodge aphids, or remove and destroy affected plant parts. Organic solutions include spraying with horticultural oil (petroleum- or vegetable-based oil used to smother insects), insecticidal soap or neem (insecticide made from a tropical tree by the same name)
  6. One of the most common pepper pests is cutworms that target seedlings, chewing through the base of the young plants almost overnight. They also chew on the leaves. Cutworms are nocturnal, so if you go through your garden at night with a flashlight, you can pick these pests off by hand
Sweet Potato Weevil Control: How to Identify, Prevent and

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Top 5 Pests That Attack Garden Plants - Gardening Know How

12 Worst Vegetable Garden Pests - ThoughtC

Pest Control is the strategy adopted to curtail or eradicate the presence of crops or animals destroying pests on the farm. Recently, there has been a lot of modification and improvement of pest control methods in Agriculture. Farmers now have a wide range of options for pest control methods to adopt for higher agricultural productivity Insects feast on plants, endangering crops and costing billions. An exit hole is damage caused by an adult Asian longhorned beetle emerging from an infested tree. Behind the blossoming flowers and.

Many of the crops grown in North America have a plethora of pests with the capability of wiping out entire yields. Some of the nation's most important crops are at risk both in the field and in storage. Unfortunately, most of these crop pests can only be controlled by environmentally unfriendly pesticides Pest damage to crop plants. Chapter. 1.9k Downloads. The agricultural entomologist has a distinct advantage over his colleagues in nematology and plant pathology in that the damaging organisms with which he is concerned are relatively large and usually to be found in the vicinity of the damage on the crop plant

Pests Destroy up to 40% of Global Crops and Cost $220 Billion. Due to the impact of climate change, plant pests that ravage economically important crops are becoming more destructive and posing an increasing threat to food security and the environment, finds a scientific review released on Tuesday The eggfruit caterpillar bores into aubergine and the native budworm will bore into the fruit of many vegetables, especially, capsicums, tomatoes and sweet corn. These fruit pests are hard to kill and early spraying is required to kill the caterpillars before they enter the fruits. Other caterpillars attack the roots and stems Plant life is subject to the harms of an enormous range of diseases, pests, and other ills—some relatively harmless, and others capable of withering entire crops and destroying whole forests, too

Pest insects can also be classified by the types of damage they cause. For example, defoliators tend to feed voraciously and strip a plant nearly bare. Many caterpillars fall into this category. Other insects include leafminers, which burrow into the leaves of plants leaving tell-tale tunnels in the leaves.One well-known leafminer is the citrus leafminer, which is actually a larval stage of a. Use chunks of potato or sweet potato as a decoy trap. Skewer a piece of raw potato and bury it near the problem area and dig after about a week and check for the presence of wireworms. Dispose of the potato piece, wireworms and all. Remove and destroy infected crops after harvesting to limit overwintering. 08 of 12

10 Most Destructive Garden Pests - How to Keep Common Bugs

To reduce the damages caused by pests to crop plants, farmer need to control the pests and diseases. They can do this in many ways. Farmer can hand-pick the large pests and kill them. Farmers should use natural enemies to kill pests. Farmers should keep the farm very clean, by removing weeds Chinch Bugs. The chinch bug is a native North American insect that can destroy cultivated grass crops, especially sorghum and corn, and occasionally small grains, such as wheat and barley. Crop damage from this insect is most often found in southeast Nebraska and northeast Kansas and is associated with dry weather, especially in the spring and. The term pestilence has some application of use to generally describe. 2: something that is destructive or pernicious I have seen it used in reference to destruction of plants and crops by insects (or other vermin). But besides being a more generic term of something destructive, pestilence appears to be more focused on disease, as it's first definition is

13 Common Pests of Leafy Vegetables: Photos, Prevention

Flea beetles may not kill your plants - but they can spread disease so it is important to control the problem. You can use sticky traps to catch flea beetles as they jump. Crop rotation is key to avoiding problems, as infestations may overwinter in the soil. Repel these pests with basil or catnip. Or use trap crops of nasturtiums or radishes Introduction A pest can be classified as any organism capable of causing damage to crop plant. Pest are animals, insects, germs or other organisms that interfere with plant growth. They may bite, destroy food crops or damage farmland produce. Types of Crop Pest There are six classes - Insects - birds - rodents - monkeys - nematodes - The adult of the squash beetle overwinters in crop debris. All other lady beetles are beneficial because they feed on insect pests, such as aphids and scale insects. Destroy crop residues after harvest and reduce overwintering sites by tilling. Spider Mite Researchers have created plants that kill insects by disrupting their gene expression. The crops, which initiate a gene-silencing response called RNA interference, are a step beyond existing.

It is needful to the farmer to identify the pest to choose the right pesticide.The farmer should necessary to learn the pests and control methods before sowing a particular crop.Otherwise he can not get proper yields. Every farmer should study the.. Among the most important crops grown in the Caribbean are coffee, sugarcane, bananas, plantains, root crops (sweet potato, yams, taniers, cassava), tomato, peppers, cabbage, cucurbits, citrus, pineapple, avocado, mango, pigeonpea and beans. There are important insect pests attacking these crops, some of them with a high potential for biocontrol

Scientists: Worms Could Kill Pests on Space Vegetables. the worms were able to survive as well as infect and kill pest insects that might threaten crops much as they do on Earth,. Insects that can be considered 'harmful' are those that accomplish something negative for the ecosystem - destroying crops, structures, infestations - or can deliver painful / poisonous / venomous bites to people. Keep in mind that some insects deemed harmful appearing on this list may also provide benefits in turn

10 Worst Garden Insect Pests and How to Get Rid of Bugs on

  1. Thrips and plant lice are tiny plant pests that can destroy a crop by establishing a disease in a crop. Damage caused by such pests can be tertiary of nature when fungal spores are carried into the crop by wind and enter the damaged areas; it is not necessarily only insect borne diseases that damage crops
  2. Hot and dry conditions favor pests, such as spider mites, that can destroy crops. Severe drought in the Midwest could send insect and spider populations skyrocketing, adding insult to injury for.
  3. Pest and disease control in crops Beginnings of pest control. Wherever agriculture has been practiced, pests have attacked, destroying part or even all of the crop.In modern usage, the term pest includes animals (mostly insects), fungi, plants, bacteria, and viruses.Human efforts to control pests have a long history
  4. Arthropod pests (both insects and mites) rob North Carolina farmers every year by eating into their crop yields. No matter what a grower does, it seems like there is always a destructive pest waiting in the wings. We've curated a list of 10 of the most vexing pests that prey on agriculture in North Carolina
  5. There are different pests that destroy crops in agriculture such as: • Weeds or unwanted plants • Insects • Rodents • Fungi. Many different types of pesticides are used on farms. They are grouped (classified) according to their use or pests they intend to kill. The following are the most common types used in South Africa
  6. The Top 7 Worst Insects for Cannabis #1 - Spider Mites. How to Identify Them: Small, spider-like creatures; signs include thin webbing on the plants and pale spots on the leaves. How to Prevent Them: A colder, breezy grow room.Pesticides, organic insecticidal soaps, bleach solutions, and alcohol solutions will get rid of an infestation
  7. Herbivorous insects are said to be responsible for destroying one fifth of the world's total crop production annually. Pests and diseases can affect crops an..

The cereal leaf beetle is primarily a pest of spring-planted small grains such as oats. Much lower numbers are found in winter wheat, and feeding damage to that crop is usually insignificant. Eggs are laid on the upper surface of leaves, near the midrib, in April through June. They are elongate, yellow to brown, about 1/16 inch long, and are. Though no work is currently ongoing that explores genetic modification in dealing with the pests, the entomologist is convinced it is a sustainable option that warrants attention. Countries in East Africa are currently battling a widespread invasion by the pests as they destroy crops, leaving vast populations food insecure. Somalia and Ethiopia. Dry Season: Pests, Insects Destroying Our Crops, Vegetable, Farmers Lament. As the country experiences dry season, farmers across the country are faced with the challenges of irrigating their farms and controlling of some insects and pest which destroy crops during this season. At the Gado Nasko Farms in Kubwa, Abuja, which covers over 100.

http://wwwGarden Insect Pests | Vegetable Gardening Guru

10 Common Pepper Pests and Diseases That Can Kill Your Crop

  1. er are examples of insects whose overwintering stages, and the crop residues in which they reside, can be destroyed by plowing
  2. The common black and yellow-striped potato bug, a very familiar insect, is the most serious pest of potatoes. Both the adult, or beetle, and the black-spotted, red larva feed on potato leaves. Their damage can greatly reduce yield and even kill plants. Figure 3
  3. Insects & Pollinators Pollinators by Numbers. Three-fourths of the world's flowering plants and about 35 percent of the world's food crops depend on animal pollinators to reproduce. More than 3,500 species of native bees help increase crop yields. Some scientists estimate that one out of every three bites of food we eat exists because of.

Crop destruction and disease transmission by insects have a remarkable impact on human economy and health. Nearly 20% of the annual crop production is destroyed by insects (Oerke and Dehne, 2004 ), and about the same percentage of loss is registered for stored food grains ( Bergvinson and Garcia-Lara, 2004 ). Disease transmission to animals and. Jürgen Kroschel, Birgit Schaub, in Insect Pests of Potato, 2013. Introduction. Insect pests account for 16% of the crop losses of potato (Solanum tuberosum L.) worldwide (Oerke et al. 1994), and reductions in tuber yield and quality can be between 30% and 70% for various insect pests (Raman and Radcliffe 1992).Among those pests are three species of the Gelechiidae (Lepidoptera) family, and. Many farmers choose to use chemicals to keep weeds and pests from destroying their crops and to add more nutrients to the soil. There are three different kinds of pesticides; herbicides, insecticides and fungicides. All three of these pesticides are used to kill different kinds of pests that can be found on a farm Both pests are native, and have probably been sabotaging squash and pumpkins for thousands of years, or as long as these crops have been grown by humans. Dull gray, hard-backed squash bugs weaken plants by sucking plant juices and hatching dozens of young, and they have been found to transmit the bacteria responsible for cucurbit yellow vine.

Pasteurizing eliminates many of the insects, nematodes, pest fungi and any other pests that may be living inside the compost. To properly pasteurize compost for mushroom production, its temperature is raised to 140 degrees for at least four hours. Higher temperatures will kill or deactivate good microbes needed for later growth processes Raccoon and other small mammals can be a pest to some crops. Small animals that destroy our crops. Millions of insects roam the earth with nearly 1 million named extant species. in our region, bison, deer, monkeys used to destroy our crops, at least 30 percent of my crops used to get destroyed by the wild animals every year

But beyond that, researchers are deciphering the ways in which a wide variety of microorganisms kill or suppress other microbes, weeds, fungi and insects that destroy crops and diminish. pests that damaged their crops [Smith, Apple, and Bottrell, 1976]. Weeds were controlled with tillage implements, mowing, site selection, planting seeds free of weedseeds, and often even with the use of hands and hand tools. Attempts to reduce losses from insects and disease also included practices such as crop rotations, planting tra We talk in-depth about the 25 most common pests that could wreak havoc in your garden and destroy your crops. How to prevent and get rid of them. Article by New Life on a Homestead. 2. Love Garden Garden Care Garden Ideas Bucket Gardening Gardening Tips Get Rid Of Aphids Squash Bugs Cucumber Beetles Bug Off

Insect pest management in cotton. Insect pests that feed on plant structures that directly produce yield, such as growing tips and fruiting structures, are generally the greatest problem in a cotton crop. These pests include Helicoverpa and mirids. The cotton plant has an indeterminate growing pattern (fruit are present for most of the season. Pest and disease management in vegetable crops. Pests and diseases are responsible for millions of dollars in damages to vegetable plants each year. Vegetable diseases take their energy from the plants on which they thrive and they are responsible for a great deal of damage and are encouraged by wet weather, poor drainage, or inadequate airflow. Some vegetable plant diseases are characterized. If you wish to use chemicals for root maggot control, apply a liquid pesticide to your garden bed at the beginning of the growing season. Make sure that you soak the soil. This will kill off the vegetable root maggots. Keep in mind that anything else in treated soil, such as worms, will also be killed. These pesky root eating insects can be. Farmers lose an estimated average of 37% of their rice crop to pests and diseases every year. In addition to good crop management, timely and accurate diagnosis can significantly reduce losses. If you are facing a problem in your crop and need help with diagnosis, seek advice from a professional or use the Rice Doctor Wasps Being Trained To Destroy Crops Pest. AP. June 12, 1990; Credit... The New York Times Archives. To use wasps to kill pests, large numbers will have to be raised in laboratories. But ''if.

How Do I Protect My Garden from Tomato Caterpillars? - BugInsect Damage and Control - Growin Crazy Acres

Pests of Field Crops Entomolog

Destroy crop residue immediately to eliminate protected sites that imported cabbageworms may use to survive the winter. Remove weeds from the Brassicaceae family like wild mustard, peppergrass and shepherd's purse, as they are alternate hosts for these pests Sanitation procedures-- Removing or destroying crops and plant material that are diseased, provide overwintering pest habitat, or encourage pest problems in other ways. Tillage B Mechanical disturbance of the soil that destroy pests in a variety of ways, for example, by directly destroying weeds and volunteer crop plants in and around the field Three Insects That Can Destroy Young Corn Plants By Doyle Oerter, Senior Staff Agronomist | May. 14, 2018 If yours is one of them, now is the time to make final stand counts to determine if plant populations are adequate to achieve previously set yield goals Insects make up three-fourths of all the animal species on earth. Insects such as beetles and worms can easily infest and destroy crops. Rodents also cause damage to crops both while they are growing and in storage. But using pesticides allows farmers to kill the pests without destroying their crops

However, moth larva can destroy entire crops. Caterpillars that are blamed for plant damage are almost always young moths. There are 16x more moth species than butterflies, and many can cause real damage on fruit trees, flowers, or vegetables Insects can eat away and destroy gardens and orchards while ticks and mosquitoes can transmit diseases and kill precious livestock. Whether you have a small farm or stepping up, knowing how to identify and eradicate pests will keep your farm healthy for years to come Flea beetles. The flea beetle is a pest that damages crops below and above ground. This tiny, hopping insect commonly feeds on broccoli and cauliflower. The larval form of the beetle are root. Pesticidesare chemical substances that kill insects, weeds, and a whole assortment of organisms that reduce crop output. In the 1980s, Rosmann visited a couple of farmers that grew crops without pesticides. Much to his surprise, their fields looked great. There were few weeds and insects. Encouraged by what seemed a Predatory insects and spiders control insect pests and slugs, reduce crop damage in transition to organic crop production. Two predatory ground beetles (Poecilus lucublandus) attacking a caterpillar. Photo Credit: Nick Sloff. The growing demand for organic livestock, poultry and eggs is driving Pennsylvania's #2 ranking for organic sales in the.

Pest Outbreak: 12 Animal Infestations That Destroy Crop

Top pests and diseases. The study identified 137 individual pathogens and pests that attack the crops, with very large variation in the amount of crop loss they caused. For wheat, leaf rust, Fusarium head blight/scab, tritici blotch, stripe rust, spot blotch, tan spot, aphids, and powdery mildew caused losses higher than 1 percent globally Here are just a few pests that have hitched rides to distant shores, where they're currently wreaking havoc.1. The birds compete with native species and destroy crops at every turn. So.

How To Get Rid Of Ground Squirrels In 3 Practical Steps

The best way to control this pest is to plow the garden in the fall, destroying ant nests. Corn Flea Beetles are small but dangerous. Only 1/16th of an inch long, these jumping black beetles chew corn foliage and transmit Stewart's bacterial wilt. The pests abound during cool, wet periods and after mild winters Soft-bodied insects, as well as their eggs, are also a favorite of ladybugs. These attractive insects are tempted into the garden with flowering weeds and herbs that include dandelions, wild carrots, yarrow, dill, and angelica. Pirate Bugs. Pirate bugs attack many bad insects and are especially fond of thrips, spider mites, an Cutworms are even more damaging because they tend to live in the soil around crops and destroy the stems of plants. These pests also feast on the eggplant's leaves. Hornworms will devour leaves. You plant the trap crop first so that it attracts the pests, and then the harvest crop a month or so later. This way, the pests are attracted to the fruiting trap crop before the harvest crop fruits. When you're ready, you can remove the trap crop along with the pests, or you can spray pesticides on the trap crop to kill the bugs

11 Common Pests That Can Destroy Your Cannabis Cro

Crops that kill pests by shutting off their genes Date:July 27, 2017Source:Cell PressSummary:Plants are among many eukaryotes that can 'turn off' one or more of their genes by using a process called RNA interference to block protein translation. Researchers are now weaponizing this by engineering crops to produce specific RNA fragments that, upon ingestion b Pests. Damaging pests can work quickly in a potato patch. Stroll through the plot regularly looking for insects and the damage they cause. It's a lot easier to deal with a pest before it becomes a disaster. If you choose to use sprays or dusts to prevent or control a pest problem, read the directions and follow them carefully. Colorado Potato. Pest insects can have adverse and damaging impacts on agricultural production and market access, the natural environment, and our lifestyle. Pest insects may cause problems by damaging crops and food production, parasitising livestock, or being a nuisance and health hazard to humans. Western Australia is free from some of the world's major pest insects A wide range of insects affect cultivated crops and rangeland grasses throughout Alberta. The most economically important are high-risk insect pest species that can destroy crops. Some are provincially regulated pests. In this section, find out how to identify them, and what you can do to control their populations and prevent crop damage Aphids are one of the most common pests across many crops, therefore its worth learning a bit about them to be able to improve their management. Talking about aphids is especially timely because hot summer days favor their quick reproduction and the weather fronts that arrive from the south may bring migratory aphids, dumping them onto crops in.

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5 Common Pests That Bug Squash Plants and How to Stop Them

Pest species are plant feeders that scar leaf, flower, or fruit surfaces or distort plant parts. Other species of thrips simply feed on fungal spores and pollen. Feeding by thrips causes tiny scars on leaves and fruit, called stippling, and can stunt growth. Damaged leaves may become papery and distorted This reduces the possibility of every crop getting damaged by pests. 4. Using pests to fight pests: This is the method of using pests to fight pests. Some farmers in the West have introduced predatory insects like ladybugs or mites, which kill other pests to avoid crop damage. 5. Organic Pesticides Crop-destroying pests. Caterpillar of The European corn borer or borer or high-flyer (Ostrinia nubilalis) on corn stalk. It is a moth of the family Crambidae. It is a one of. Using satellite navigation systems during planting and seeding using a seeder/planter with a tractor. Field machines are suitable for both wide-row crops and narrow-row.

In Sumba, pests destroy crops and starve populations! We

In some cases, the only workable way to prevent the spread of pests involves destroying affected crops, which is a last resort that no grower wants to face. In Florida, many acres of citrus trees have been destroyed, in an effort to control HLB. California has mostly found other methods of control, so widespread destruction has not been needed. It also uses biological extracts, traps, repellents etc. for pest control. Intext questions . Fill in the blanks 1) Insects have type of body. 2) Mites have legs. 3) is an organism that causes any type of damage to the crop plants. 4) The chemicals used to kill the insect pest are called as . 5) Tricogama is used to control insect pests in method Up to 40% of global crop production is lost to plant pests and diseases, says the U.N. Food and Agriculture Organization. NAIROBI, June 2 ( Foundation) - Ravenous pests are on the. They damage and destroy once healthy plants within a short period, ruining all of your hard work. Many pests are resistant to conventional treatments, which is why learning organic pest prevention methods are essential. Preventing garden pests needs to be the prime focus for all gardeners, regardless of whether you practice organic gardening Two species, the southern and tawny mole crickets, are pests of improved pastures of bermudagrass and bahiagrass, turf grass, and other crops in Texas. Mole crickets are brown, cylindrical insects with large, shovel-like front legs modified for digging in the soil. The adults are about 1½ inches long, can run quickly, and fly at night

Seedcorn Beetle and Slender Seedcorn Beetle | Pests | Corn

Miscellaneous chewing insects. The sawfly larvae, grasshoppers, slugs and snails also fall into this category of chewing insects and can cause damage to cut flower crops. Insects Causing Damage by Piercing-sucking. Perhaps most damaging although not as apparent, are insects and insect-relatives that suck plant juices Controlling pests Crop pests include insects and other animals that eat or damage plants. Pests can be controlled using pesticides or by introducing other species (biological control) We provide an overview of the major insect pests of turnips and rutabagas and advice on how to control them. Aphids. While several kinds of aphids can plague turnip crops, including the turnip aphid (Lipaphis erysimi), the black bean aphid (Aphis fabae), and the green peach aphid (Myzus persicae), the cabbage aphid (Brevicoryne brassicaea) is particularly fierce Crops that kill pests by shutting off their genes The following is an excerpt of a press release from Cell Press announcing a new study about modified crops that could act as their own pesticides. Plants are among many eukaryotes that can turn off one or more of their genes by using a process called RNA interference to block protein translation iii) destroying crop residues, which might harbour pests that could invade new crops; iv) burying residues so deep that emergence from eggs or pupae is made impossible. Note: minimum tillage and direct drilling may, depending on habitat conditions, increase or decrease pest presence, so knowledge of the bioecology of the particular pests that.

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The good insects are generally those that eat the pests, break down crop residues in the soil or, in the case of the bee, help pollinate many types of fruits and vegetables. Pests can really damage a crop. In rare cases, they can even ruin an entire field's produce by eating the crop or killing the plant itself Cover crops can be soil builders, soil looseners, soil water conservers, erosion fighters, nutrient providers, hay crops, silage crops, seed crops, used for grazing livestock, and pest managers. Obviously, cover crops can be grown for many reasons and benefits. The focus of this article will be the pest manager roles of cover crops These Bt proteins kill some voracious caterpillar and beetle pests but are harmless to people and considered environmentally friendly. While organic farmers have used Bt proteins in sprays successfully for more than half a century, some scientists feared that widespread use of Bt proteins in genetically engineered crops would spur rapid.

Rome — Pests destroy up to 40 percent of global crops and cost $220 billion of losses Due to the impact of climate change, plant pests that ravage economically important crops are becoming more. Crops that kill pests by shutting off their genes. Plants are among many eukaryotes that can turn off one or more of their genes by using a process called RNA interference to block protein. Herbivorous insects are said to be responsible for destroying one fifth of the world's total crop production annually. One major reason why there are pests is the creation of man-manipulated habitats, that is, agroecosystems that fulfil man's needs, where crops are selecte Healthy plants can fight diseases and pests on their own. 4 Soil health can have an even more direct impact on pests through beneficial fungi that kill insect pests. Cover crops improve soil health, which results in healthier cash crops that can better defend against pest damage as well as support robust predator communities that can help keep. Herbicides: substances that kill or inhibit growth of unwanted plants (weeds) Insecticides: substances that kill arthropod pests, i.e. insects and mites. Fungicides: substances that destroy or prevent the growth of pathogenic fungi. All three are pesticides. Figure 1 Global sales of crop protection chemicals (2008)

Pests with the highest potential for crop damage appear at the top of the calendar within the Red bar, while the pests with the lowest damage potential occur at the bottom of the calendar, represented by a Violet bar. Click on a pest name below to begin: Soybeans Scouting Calendar; Soybean Scouting Calendar. April. May Protection of crop losses/yield reduction. In medium land, rice even under puddle conditions during the critical period warranted an effective and economic weed control practice to prevent reduction in rice yield due to weeds that ranged from 28 to 48%, based on comparisons that included control (weedy) plots (Behera and Singh, 1999).Weeds reduce yield of dry land crops (Behera and Singh, 1999. Cultural control includes such methods of planting, growing and harvesting crops, which will reduce crop damage. Slight modification in the crop rotation, weed control, disposal of crop remnants, resistant varieties, time of planting and harvesting may prove important in combating some insect pests. Control by cultural means can be achieved by the following methods: 1 Crop losses for critical food grains will increase substantially with global warming, as rising temperatures boost the metabolism and population growth of insect pests, new research says. Climate change will have a negative impact on crops, said Scott Merrill of the University of Vermont, a co-author of the study published in Science In Sri Lanka, crop-destroying insects follow the COVID-19 pandemic. by Malaka Rodrigo on 17 June 2020 . In May, Sri Lanka recorded a sporadic increase in crop-damaging yellow-spotted grasshoppers.