Abstract: In recent years, the rapid development of greenhouse vegetables has not only greatly met people's demand for vegetable diversification throughout the year, but also increased the income of vegetable farmers, but at the same time, the insect pests of greenhouse vegetables have become increasingly serious. Greenhouse insect pests are more serious pests such as greenhouse whiteflies, aphids, spotted flycatchers, red spiders, etc., of which several greenhouse whiteflies are the most rampant.
<h1 class="pgc-h-arrow-right" >1, greenhouse whitefly</h1>
Greenhouse whitefly, commonly known as the little white moth, belongs to the family Haphaluta, the genus Offly, and is a tiny pest.
The life of the greenhouse whitefly is divided into three stages: eggs, nymphs and adults.
<h1 class="pgc-h-arrow-right" >2, Aphid wasp</h1>
Lily aphid wasps, belonging to the insect class, hymenoptera, aphid wasp family, aphid wasp genus, the body length of only about 0.6 mm, is a parasitic bee, their host is the greenhouse whitefly nymphs.
<h1 class="pgc-h-arrow-right" >3, prevention and control technology</h1>
3.1 Card Making. The whitefly nymphs after the parasitization of the lice wereps are glued to the card and made into a bee card, and the dense little black dots on the card are the fetish nymphs after being parasitized, and then the bee card is packaged and stored or directly applied. When different types of hosts breed lice wereps for whitefeds on different crops, the effect is not the same, and even sometimes the difference will be larger, so farmers and friends must choose the most suitable one when buying bee cards.
3.2 Release bees
3.2.1 Bee release time.
3.2.2 Methods of releasing bees. Hang the Aphid Bee Card in the upper middle of the plant and the lower part of the leaf, protected from direct sunlight. Generally, 8 to 10 cards are released per shed (standard shed size 1 acre).
3.3 Precautions.
Conclusion: The use of aphid wasps to control greenhouse whiteflies has many benefits: first, the parasitic rate is high, the effect is excellent, and the control effect can reach more than 80%; secondly, the cost is not high, even lower than the cost of buying chemical pesticides. And the use of the method is very simple, easy to operate, easy to operate, is conducive to the production of pollution-free green vegetables, interested farmers may wish to try.