In recent years, the harm of whiteflies to vegetables has been increasing year after year, especially to vegetables such as eggplant and melon. Many vegetable farmers reported that after a lot of medicine, whiteflies are still flying all over the house. With whiteflies so rampant, how can they be treated safely and efficiently?
Combination of prevention and control: whitefly has a wide range of hosts, serious overlapping generations, strong fecundity, and wax powder on the body surface, which has always been a difficult problem to solve in greenhouse vegetables, and its movement is flexible, and it is difficult to control it by spraying alone. The whiteflies on the vegetables in the previous crop are often still left in the shed, so it is recommended to spray or smoke the shed before the vegetables are planted to kill the adults and eggs in the greenhouse before planting. Weeds outside the shed are also a parasitic site for whiteflies, so be sure to remove the weeds outside the shed as early as possible and set up insect nets to prevent whiteflies from entering the shed.
Pay attention to the spraying site: whitefly adults gather on the back of the leaves, with tenderness, so there are many adults in the new leaves on the upper part of the plant, and the unhatched eggs are mainly concentrated in the back of the leaves and side branches of the middle layer and above, and the eggs on the old leaves below the middle layer have hatched, so vegetable farmers should pay attention to it when spraying.
Insecticide and egg-killing: whitefly adults, nymphs, eggs, etc. exist at the same time in the shed, if only the insects are killed, and the eggs and pupae will continue to hatch into adults, which will continue to harm vegetables. In order to ensure the control effect, it is necessary to pay attention to the killing of insect eggs. You can choose 1000 times of imidacloprid with good insecticidal effect or 1000 times of acetamiprid with 1000 times of thiazinone with good eggicidal effect at the same time.
With the right method, vegetable whiteflies are not difficult to treat, and they are introduced here, I hope it will help you. If you want to buy high-quality and high-yield vegetable seeds, you can download the seed bank App, and the country's excellent vegetable varieties are available for everyone to choose.
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