The pentagram maple tree has a beautiful shape, a peculiar leaf shape, and a beautiful wing fruit, which is a good landscaping and street tree species. However, recently some garden friends have found that the branches and leaves of the five-pointed maple are crawling with dense aphids, which not only endanger the healthy growth of the five-pointed maple, but also fall from the tree, and it will be like rain, which is daunting, so how should the aphids be prevented? Let's take a look!
【1】The harm of aphids to the pentagram maple:
Aphids are a common pest of garden plants, often in clusters, sucking buds, new leaves and flower buds, causing new leaves, new shoots, flower buds to twist, wilt or produce galls, so that trees can not spread their leaves and flower normally. When it occurs in large quantities, it will also induce coal pollution disease, resulting in tree decline. It is also a vector insect for the transmission of a variety of viral diseases.
【2】Occurrence characteristics of aphids:
Aphids can reproduce 10-30 generations a year, and generation overlap is prominent. Generally in mid-to-late March, a large number of hatching, began to harm the tree, and the harm lasted until October, the majority of garden friends should pay attention to the control of this pest.
【3】How to control aphids?
1. In the early stage of aphid occurrence, use Qilin Zhiru to spray evenly with 150-200 pounds of water per bottle, so that the spray is even and evenly penetrated
2. In the early stage of aphid occurrence, use Qilin Guangzheng to mix 300 pounds of water with 300 pounds of uniform spray, so that the spray is even, beaten evenly, and the effect period is as long as 20-25 days
3. Qilin tree insects clear roots and control: first dig a 10-15 cm deep ring ditch around the big tree, use the Qilin tree insects to clear a set of water 200 kg stirring and dissolving, and then evenly pour it into the ring ditch, and then cover the soil after the water is dry.
