1. Aphids
At the beginning of the germination, the leaves were deployed once. The crown can be sprayed with 1500 times of 3% acetamiprid emulsifiable concentrate.
2, citrus hibiscus
For the control period of citrus hibiscus, it is mainly to take the new shoots to take out the tender buds, especially for the summer shoots taken from May to June. If the pesticides are not treated in time, the plants are damaged by citrus hibiscus. The risk of contracting Huanglongbing is extremely high. The dilution of the drug is 1000 times, the spray is sprayed once every 15-20 days, and the spray is sprayed twice or more.
3, citrus Hummer
It is often eaten on young leaves and young fruits. It is most serious during the period from Xiehua to young fruit with a diameter of about 4 cm. It is most active at noon on sunny days. The prevention and treatment period is generally used in the Xiehua period before and after the Ching Ming Festival and in the May-June period. The dilution factor of the drug is 2000 times.
4, whitefly
Black thorns usually start from late May to early June, and the damage period lasts until November. The general chemical control index is to spray the whole garden when 10% of the leaves or fruits have insects. When local occurrence of insects, it should be carried out in a selective manner. The control of whitefly mites can be carried out simultaneously in the spring shoot period and in combination with the control of citrus thrips.
5, the leaf miner
Grab the first dose when the sprout is 3-5 mm, and spray the second dose when the new shoot grows to about 5 cm. The dilution factor of the drug is 2000 times.
More pesticide knowledge , please pay attention to China Pesticide Network
(Source: I love the vegetable garden)
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