Rice planthoppers often cause large dead stalks in rice, which occur in China for 3 to 8 generations per year, which is harmful to single-season, middle-, late-, and double-season early rice. Rice planthoppers are migratory and fulminant pests with rapid reproduction and control. There are three difficulties. First, accurate warning and forecasting. Once moved in, immediately prevent and control. Second, advocate for unified prevention and control. Third, add fumigant during prevention and control, and treat adults while controlling nymphs.
Today, China's pesticide network Xiaobian to focus on the commonly used insecticides against rice planthoppers . There are many kinds of control agents for rice planthoppers. Commonly used agents include imidacloprid, buprofezin, nitenpyram, thiamethoxam and pymetrozine. Different pesticide products have different mechanisms of action. The pesticide network is edited one by one.
Imidacloprid, nitenpyram, and thiamethoxam, like other neonicotinoid insecticides, are nicotinic acetylcholine receptor agonists, mainly acting on insect nerves, and have neurological blockade on the synaptic receptors of pests. They all have excellent systemic and osmotic activity, contact and stomach toxicity, broad spectrum, high efficiency, low toxicity and low residue. After application, imidacloprid is rapidly absorbed by plants and is transmitted to the top with good root systemic activity. It can be used to control leafhoppers, rice planthoppers, aphids, thrips and whiteflies, and is also effective against soil pests and termites.
Buprofezin is a synthetic inhibitor of insect chitin and has special effects on larvae such as planthoppers and spider mites. Buprofezin shortens adult life, reduces egg production, and produces mostly sterile eggs. Generally, it can be controlled 3 to 7 days after the medicine, and has good control effect on pests such as planthoppers, leafhoppers, whiteflies, etc., and has a long potency;
Nitenpyram is used in rice for stem and leaf treatment as well as soil treatment. Mainly used in rice and greenhouse crops to control aphids, thrips, spider mites, whiteflies and other sucking mouthparts pests.
Thiamethoxam is applied in a variety of ways, in addition to foliar spray, it can also be used for seed treatment and soil treatment. It can be used to control aphids, whiteflies, thrips, rice planthoppers, rice leaf roller, whitefly, alfalfa, potato step, armor, step armor, leaf miner and lepidopteran pests. Compared with imidacloprid, etc., its molecule
The introduction of chlorothiazole into the structure has higher safety, wider insecticidal spectrum, faster action and longer duration. Thiamethoxam is applied in a variety of ways, in addition to foliar spray, it can also be used for seed treatment and soil treatment.
The pesticide network of " Pesticides commonly used to control rice planthoppers " is temporarily introduced here. For more information on pesticide products , please visit the China Pesticide Network!
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