The apple aphid is a pest of the order Homoptera, which is usually parasitized on the rough skin cracks, cuts, cuts, new shoots, and bare ground rhizosphere of apple branches to absorb sap and consume the tree body. nutrition. After the fruit trees are damaged, the tree vigor is weakened and the life span is shortened. Therefore, all countries in the world have listed the apple millet as an import and export quarantine object.
In our country, the prevention and control of M. septempunctamus was mainly based on "666" and "DDT". Since the state banned the use of these two types of pesticides in 1983, there have been situations in which the prevention and control of pesticides in M. edodes in apple varieties is insufficient and the number of pesticides is effectively prevented. In response, the Shandong Provincial Science and Technology Commission issued a research project on the comprehensive prevention and control technology of apple aphid mites, Shandong Province Pesticide Research Institute and Shandong Gaomi Pesticide Chemical General Factory. After more than two years of technological research, successfully developed the apple Nemesis 40% wiped out more insecticides and filled the domestic gap.
The use of annihilation to prevent and control apple wandering, as long as we have a good grasp of the timing of prevention and control, one-time medication can achieve the purpose of control throughout the year. The test showed that the best time for the first time was in May. The second time for the prevention and control of the apple harvest from late October to early November.
There are usually two methods of application: one is a liquid spray and the other is a ring. The liquid spray method is to dilute the 40% wiped-off multi-emulsion oil from 1000 to 1500 times and spray it. In May, spraying should focus on the control of the trunk and the main branch. When spraying from October to November, the tree should be used evenly.
The ring coating method is only suitable for the growth period of fruit trees. Generally, it is conducted in May. The operation method is to take a 40% annihilation multi-emulsifiable concentrate plus 4 parts of water to make 5 times liquid, and then select the appropriate part on the trunk of the tree. Tu ring. If the tree is a sapling of 1 to 7 years old, it can be directly painted. If it is an old tree over 7 years old, it is better to use a knife to gently scrape the surface rough skin, not to hurt the endothelium, and then evenly spread the liquid. Make a 4 to 5 cm ring, pack it with a newspaper, apply a layer of medicine, and wrap it with a plastic film.
Pharmaceutical Glass Vials, Pharma Glass Vials, Pharma Vials , butyl rubber stopper, seal, cap, empty IV bags, Empty IV Container, glass vials, ampoules
Pharmaceutical Glass Vials,Pharma Glass Vials,Pharma Vials,Empty IV Container
China Lemon Trading Co.,Ltd , https://www.sterilevial.nl