Control of Ligustrum lucidum
The wing pattern of the adult Ligustrum lucidum is slightly like a basket of woven texture, with a wingspan of about 9-10cm, which is a large moth. The larvae are gray-black or light-colored, and there are two dorsal horns on the 2nd and 3rd segments of the body when young, and the 2nd and 3rd segments are dilated when they are nearly old, and the color around the valve is bright. The larvae can make a cackling sound in their mouth when they are disturbed. Adult Eclosion from June to July. The hosts are privet, lobular wax, Japanese privet, white wax, sweet-scented osmanthus and so on. At present, it is the period of damage to the older larvae, which we are used to seeing.
Prevention and control methods:
The main results are as follows: 1. The artificial killing of low trees such as nursery and engineering color blocks is simple and effective.
2. Bigger trees can be sprayed with pesticides such as dichlorvos and phoxim.
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Fertilization technology of privet
The time of fertilization should be in late March of the following spring, remove the sealed soil when applying fertilizer, dig a ring ditch 50 cm away from the tree trunk, 40 cm deep and 30 cm wide, and then apply farm manure. Ligustrum lucidum has low requirements for fertilizer application, more or less. After survival, fertilizers can be applied twice during watering from May to June each year, each time with 50Mel 100g of potassium dihydrogen phosphate or urea.
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How to control scale insects in privet hedge
In recent years, with the application of Ligustrum lucidum and Ligustrum lucidum in urban greening, diseases and insect pests on privet have become a major problem in garden maintenance and management. The scale insects occurring on the greening plants of Ligustrum lucidum are mainly white wax scale. It is reported that Kang's pink scale once occurred on the hedge of privet in Hebei Province. The identification characteristics and control measures of white wax scale are introduced as follows: the distribution and damage of white wax scale Ericeruspela (Chavannes) belongs to Homoptera, Coccidae. It is widely distributed in China. For
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