How should date lice on jujube trees be treated?
Date lice are what is known in production as the tortoise wax scale and scale insects. Because the adults form a waxy shell, spraying pesticide makes it very difficult to achieve efficacy, so in winter the infested branches can be pruned off, or water can be sprayed on the branches and, after it freezes, the branches can be beaten to shake the adults off. The peak of larval occurrence is generally from late June to early July; because at this time the waxy shell has not yet formed on the insect bodies, the larvae have poor resistance to pesticides, and this period is the best time for control. Ordinary insecticides can all achieve very good results. By persisting with this for 2-3 years, very good control results can be achieved.
Date lice are what is known in production as the tortoise wax scale and scale insects. Because the adults form a waxy shell, spraying pesticide makes it very difficult to achieve efficacy, so in winter the infested branches can be pruned off, or water can be sprayed on the branches and, after it freezes, the branches can be beaten to shake the adults off. The peak of larval occurrence is generally from late June to early July; because at this time the waxy shell has not yet formed on the insect bodies, the larvae have poor resistance to pesticides, and this period is the best time for control. Ordinary insecticides can all achieve very good results. By persisting with this for 2-3 years, very good control results can be achieved.