Pest control of lucky tree

Scale insects

Under conditions of high temperature, high humidity and poor ventilation, especially when kept in greenhouses for a long time in autumn and winter, the stems and leaves are prone to damage by scale insects.

Prevention and control methods: Enhance ventilation and light transmission, and pay attention to controlling environmental humidity. If you find a small number of live insects, wipe them off with a damp cloth or use transparent tape to remove them. In productive cultivation, 1500 times diluted 25% cypermethrin wettable powder can be sprayed during the peak hatching period of the nymphs.

Mites

The main symptoms of damage are wrinkling and curling of new leaves and uneven leaf surface. The pest usually occurs from June to September. High temperature and dryness are conducive to its large-scale occurrence. It occurs less frequently under relatively humid conditions. The main miticides used are damanlin, nisolan and other miticides.

aphid

The most common type of aphid is the green peach aphid. Symptoms include wrinkled and deformed leaves, often with glistening honeydew spots. Aphids can be seen with the naked eye. Prevention and control methods: Spray with zinc sulfide and phosphorus, oxydemeton-methyl, and diazinon.