The beetle pests that harm sweet cherries are mainly terrapin beetles (also known as merapi beetles) and black cashmere beetles.
Penis chafer
One generation occurs each year. Adults live in the soil during the winter. When the average temperature is between 9°C and 10°C, they are unearthed and eat during the day. The main damage is flower buds and flower cultivars. They are buried in the evening or hidden in the shade. They have a pseudo-dead nature and no phototaxis. Adult worms were born in May to lay eggs; hatching larvae took rhizomes, and in August they larvae, and they began to emerge as adults in September. Adults will not be exhumed in the past and winter in the dormitory.
Black cashmere chafer
Each year, adults spend their winters in the earth. When the average daily temperature exceeds 10°C, a large number of exhumations occur. Adults copulate and feed more than once in the evening. They damage young shoots and young leaves. In the daytime latent soil, there are false death and phototaxis. June spawning, from August to September do earthworms phlegm, flood season for 10 days.
Prevention skills
1 shake off the use of chameleon's pseudo-dead nature, sooner or later use vibration, landing killing adults.
2 Chemical control in the growing season Spray 50% of acaricolic pine oil 1000 times, or 50% of phoxim emulsion 1500 to 2000 times, or 20% of fenvalerate 1500 to 2000 times to kill chafers on sweet cherry trees. Adults.
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