What are the serious pests of cotton?
The key pests discussed are jassids, aphids, thrips, spotted/pink bollworms, American bollworm, red cotton bug, and mites. It is used to control sucking and chewing pests like aphids, jassids, and whiteflies in cotton, vegetables, and fruits.
What is the most common pest of cotton?
Boll weevil (Anthonomus grandis) and pink bollworm (Pectinophora gossypiella) are serious cotton pests. For much of the 20th century, they caused tens of millions of dollars in damage to cotton producers, reduced land values, and greatly disrupted local economies. Major Pests of Cotton :: Cotton Bollworms There are three kinds of bollworms, viz. Among the three, the spotted bollworm occurs early, when the plant is 15-20 cm height and continues to feed on shoot.Transgenic cotton expressing Bacillus thuringiensis (Bt) cry1Ac and cry2Ab toxin genes is widely cultivated to manage bollworm complex in India. Cotton bollworm Helicoverpa armigera (Hübner) is one of the most serious of this complex.Noted examples of this phenomenon include: Left: the bollworm, Helicoverpa armigera, a major pest of cotton and vegetables in the Old World.
What is the scientific name for the pest of cotton?
Pests of Cotton :: Major Pests :: American bollworm/Green bollworm. American bollworm/Green bollworm: Helicoverpa armigera (Noctuidae:Lepidoptera) Distribution and status: Cosmopolitan. Cry II Ab and cry I Ab produce toxins that control. A) Cotton bollworms and corn borer respectively.Transgenic cotton expressing Bacillus thuringiensis (Bt) cry1Ac and cry2Ab toxin genes is widely cultivated to manage bollworm complex in India. Cotton bollworm Helicoverpa armigera (Hübner) is one of the most serious of this complex.The Cry1Ab and the Vip3Aa20 insecticidal proteins expressed in this product control certain lepidopteran pests of corn, while the mCry3A insecticidal protein controls coleopteran pests of corn.
What is the most common disease in cotton?
The bacterial blight is the most wide spread and destructive disease reported to cause yield losses of about 10 –30 per cent. Under favourable weather, bacterial ooze can be produced from the lesions on the lower leaf surface, on stems and on bolls. Crop Diseases Caused By Bacteria Bacterial blight. Bacterial crown gall. Blackleg. Aerial stem rot.
Which insecticide is best for cotton crops?
Pesto Raze Cotton Special is specially used to control all sucking pests for cotton. It is the best insecticide for whitefly in cotton, aphids, hoppers, thrips, and mealybugs of cotton plants. Solution: Pheromone traps, crop rotation, and insecticides containing neem oil have all been shown to be effective against this pest. Healthy cotton plants are less susceptible to pest attacks.Neem derived pesticides have been found to be effective and economic in controlling major cotton pests. Neem products act both as systemic and as contact poisons and their effects are antifeedant, toxicological, repellent, sterility inducing or insect growth inhibiting.
What are the main pests of cotton?
The key pests discussed are jassids, aphids, thrips, spotted/pink bollworms, American bollworm, red cotton bug, and mites. Management involves both preventive and curative methods like clean-up campaigns, biological control agents, and chemical control with insecticides timed to critical thresholds. Also look at pruning back foliage to prevent sheltered feeding spots and control weeds were they like to breed. Encourage natural enemies in the garden such as lacewings and ladybird species. Mealy bugs can also be controlled with a pest oil such as EarthCare White Oil insect spray.Neem oil is a natural and effective way to control mealybugs on plants. Here’s how to use neem oil to get rid of them: Mix the solution: Mix 1-2 tablespoons of neem oil with one quart of water and a few drops of dish soap.
What is the fungal infection in cotton?
Cotton crops are affected by a variety of fungal diseases such as Anthracnose (boll rot), Leaf Blight, Leaf Spot, Root Rot, Alternaria (Grey Mildew), Wilt, and Boll Rot. Verticillium wilt Verticilliumdahliae Economic importance The disease is a major disease in cotton in USA and USSR and was first reported in India during 1968 on hirsutum cottons in Coimbatore, Tamil Nadu.