We know that autumn is the peak of the harm of the American white moth and the square-winged reticule bug, and these two are precisely the common types of insect pests on the tung tree, if the two join hands, the degree of harm is not good, recently, Qilin technical manager visited the market encountered such a situation!
[1] American white moth and square-winged reticulated bug "collusion":
Recently, when the Qilin people visited the front line, they found that the tree was full of black dots, and a closer look showed that it was full of insect feces on the ground, observing the leaves of the tung tree, there had been a dot-like pale and green loss, and the back of its leaves was found to be harmful to the reticulate bugs. The qilin people also found that the leaves of the Law Tong had been mutilated, and found the American white moth larvae on their leaves that were eating the harm, and the two collaborated to commit crimes, which can be described as fatal injuries to the Law Tong!
1. Square-winged reticulum bug: Adults and nymphs of the genus Pterophorus are mainly parasitic on the back of the leaves, sucking sap, causing the leaf tissue to lose water, and then gradually turning yellow and wilting, and eventually withering prematurely. It secretes liquid-like excrement when it is harmful, which turns black after drying, sticks to the skin under the nymph molt, and fixes on the surface of the lower leaf.
2, the American white moth: autumn is the third generation of harm of the American white moth, often with larvae encroachment on the leaves, leaving only the leaf veins, so that the tree growth is poor, and even the whole plant dies.
[2] What should I do if I encounter the harms of these two?
1. In autumn, measures such as scraping the loose bark layer, collecting and destroying fallen leaves and combining them with Qingyuan (using Qilin Mingdikang), and painting white (such as Qilin Kebai) can reduce the number of wintering insects.
2. Chemical control:
(1) Square-winged reticule bug: If the harm of the square-winged reticulum bug is found, it can be prevented and controlled by spraying 200 kg of water with Qilin Guangzheng.
(2) When the American white moth occurs, it is recommended to use the Qilin "Royal Moth" spray to kill and control.
