With the continuous increase of greenhouses, the greenhouse environment is also suitable for the survival of whitefly, making the harm of whitefly rising and becoming one of the main pests of greenhouse crops.
Whitefly is no stranger to everyone, whitefly is very small, adults are more than 1 mm long, adult wings and nymphs have white wax powder or waxy protrusions or wax filaments on the surface. Although the individuals of whitefly are small, the population is large, occurring in more than 10 generations a year in the north, with fast development, strong reproductive ability, and prominent generation overlap.
Whitefly can directly suck the sap in the stems and leaves of crops, causing damage to plant growth, and at the same time, when sucking sap, toxins are injected into plants, making crops grow poorly.
Moreover, the wounds caused by whitefly will spread diseases, and the secreted juice can cause mold, pollute leaves and fruits, cause soot diseases and other diseases, and also reduce the quality of vegetable fruits and affect their commodity value.
Whitefly are extremely rampant, and even if they are sprayed, it is difficult to prevent and control, which makes growers very headaches. And now more and more greenhouses are carrying out green organic cultivation, reducing the use of pesticides, or even not using pesticides. So how to prevent the whitefly, the number one enemy in the greenhouse
The number one killer of whitefly - lice aphid wasps
Lisa fawns are the natural enemies of whitefly, specializing in preying on whitefly nymphs, radix wasps will parasitize in the body of whitefly nymphs, or directly eat the body fluids of whitefly nymphs to kill whitefly, according to tests, a lice aphid wasp can kill 20-30 whitefly lice. The prevention effect can reach more than 90%.
Arrogant whiteflies, pesticides are not afraid, but afraid of smaller than their own size of the aphid wasps. Greenhouse tomatoes introduce aphid wasps, even if not medicated, can effectively control whitefly.