Tomato, bean, and pepper
There are few possible reasons for the curling of tomato leaves, Tomato leaf curl virus (TYLCV) is one of them. TYLCV is a member of the begomoviruses genus. TYLCV is mainly spread by whiteflies (Bemisia tabaci) and is common around the world. TYLCV has a major influence on worldwide tomato production; it is responsible for the reduction of tomato yields and the quality of tomatoes.
At an early stage of the growing season, young infected tomato plants exhibit severe stunting with one or more symptoms, including: a “bushy appearance” caused by smaller than usual leaflets, yellowing and curling of leaves, and yield reductions.
There are no treatments for viruses. Infected cucurbits plants cannot be cured; therefore, the focus should be on prevention.
*Use plant varieties and seeds that are resistant to the virus.
*Grow Inside Structures: Keep the structure closed and the nets free of holes.
*Remove weeds. Several kinds of weeds can act as hosts that allow the virus to remain present between seasons. This can cause contamination of crops in the following season and make the virus control difficult.
*Use pest monitoring techniques such as yellow sticky traps to aid in keeping track of the whitefly population.
Preventing and stopping the TYLCV from spreading is done by focusing on eliminating whiteflies, which can be difficult since a whitefly population can quickly develop a resistance to conventional chemical treatments.
The following are insecticides used in one or more parts of the world: cypermethrin, deltamethrin, bifenthrin, diafenthiuron, thiamethoxam, imidacloprid, acetamiprid, spiromesifen, buprofezin, cyantraniliprole, spirotetramat, and synthetic terpenes extract of chenopodium.
Azadirachtin, Fatty acid potassium SAL, Beauveria bassiana strain GHA, neem oil, and other plant oils
Amblyseius swirskii is a commercially available predatory mite that is capable of significantly controlling a whitefly population.
Try to avoid frequent use of organophosphate, carbamates, or pyrethroids insecticides; they will eliminate natural whitefly enemies and pollinators.
*Names marked in red are considered to be highly poisonous to beneficial insects.
*Names marked in green are considered to be organic and IPM (integrated pest management) compatible.
*Names marked in red are considered to be highly poisonous to beneficial insects.
*Names marked in green are considered to be organic and IPM (integrated pest management) compatible.