Pearl bush pest control methods
ScarabUsually it is a small blue beetle. Usually this type of beetle will bite leaves, buds and flowers, causing the leaves to be incomplete. Prevention and treatment methods1. Use the adult insect's ability to feign death to kill it by shaking branches in the early morning or evening; 2. During the adult outbreak period, spray 1000 times solution of 40% omethoate or 1000 times solution of 50% malathion. 3. Taking advantage of the habit of adult insects burrowing into the soil, sprinkle 2.5% phosmet powder around the plants. Afterwards, loosen the topsoil and allow the adult insects to die of poisoning due to the exposure to the pesticide. Spotted leaf cicadaAdults and nymphs often gather on the back of young leaves to suck sap. The affected leaves may become perforated, cracked, curled or thickened depending on their age. Prevention and treatment methods1. In winter, dense branches and dead branches should be cut off, and diseased plants should be burned to reduce the source of insects; 2. Use insect nets to catch and kill adults during their peak period; 3. During the nymph and adult damage period, you can use 1000 times the solution of 90% dichlorvos or 1200 times the solution of 40% malathion emulsion for spraying. |
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