In recent years, afforestation seedlings, especially landscape green seedlings, which have been reforested from other regions have increased year by year, and various types of forest pests have also come along. According to the monitoring of forestry pests and diseases, the wax cricket oocysts are stored on the privet trees in parts of our region. The larvae are very harmful to the Ligustrum lucidum, and it is easy to cause the branches to wilt and even the trees to die, affecting the tree shape and greening landscape. The white wax worm, commonly known as white wax insects, belongs to the genus Heteroptera of the genus Aconitum. The main damage is privet, lobular privet, ash tree, lacquer tree and other plants.
Specific prevention advice:
1, physical control. The main method is clipping and cutting. The first is to cut off the oocysts (also known as shells and shells) before the beginning of May and focus on burning; the other is to cut off the branches that were parasitized by white wax insects and focus on incineration in June and August. It is mainly applied to sporadic trees. The point of attention is to be careful and cannot be omitted, otherwise it will be difficult to achieve the desired control effect.
2, chemical control. When the 1st instar larvae are still concentrated on the leaves (before the end of May), 1000 times more than chlorpyrifos, 1,000 times as much as bitter nicotine, or 1500 times as much as 2.5% kappamile can be used for spraying. Points to note: First, we must seize the favorable timing; Second, we must spray the blades forward and backward, that is, the first direction of spraying, and then return to the reverse spraying, so that the leaves and shoots can be evenly sprayed to the liquid.
3, strengthen quarantine. When outsourcing seedlings, especially privet and white wax, must be quarantined, it is strictly forbidden to transfer seedlings with white wax oocysts or wax insects and burn them once they are spotted.
All localities must organize forces to strengthen pest investigations and, once discovered, promptly report and organize timely and scientific prevention and control.
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