Musk Ketone (cas no.81-14-1) is a nitrated ketone. ketones are reactive with many acids and bases liberating heat and flammable gases (e.g., h2). the amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas (h2) and heat.
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October Cucumber pest control
In the early autumn, cultivation should be carried out in the prevention and control of powdery mildew. Powdery mildew is a disease that can occur in the whole growth period. It produces white round moldy powder spots on the leaves or leaves, and begins to develop from the lower leaves. After severe infection, there will be a layer of white mildew on the leaf surface. The white mold layer of the susceptible part is gray-brown and the leaves are yellow and necrotic. The disease is sudden and strong, and it is impossible to prevent it. It should be strengthened. The chemical control can be used with 10% high water dispersible granules 2500~3000 times liquid, 2% added rice water 500 times liquid, 70% oil dry suspension agent 600 times. liquid.
In the middle of autumn, the greenhouse is postponed, and the prevention and control of downy mildew and whitefly are also good. Downy mildew is also a disease that can be infected during the whole growth period. The lesions are restricted by veins and are mostly polygonal brown or yellow-brown patches. When the humidity is high, the gray-black mold layer grows on the back of the leaf, and it quickly dries up after forming a large lesion. The chemical control can be controlled by Amisida 1500 times solution, Jinlei 600 times solution, Kekeling 600 times solution and the like. Whitefly can be mixed with 25% Aketai water dispersible granules 2000~5000 times liquid, Piao Lingling wettable powder 800~1000 times liquid and Uranus emulsifiable concentrate 4000 times liquid.
In the late autumn, the greenhouse should be well controlled by tea sassafras, and the young parts of the stalks of the sassafras and the young stalks will be sucked, and the leaves of the damaged plants will be narrowed, shrunk or distorted, and the young stems will stand stiff and erect. The chemical control can be used with 1.8% avermectin 2000~3000 times solution, 20% lingzhi emulsifiable oil 1500 times solution, or Uranus emulsifiable concentrate 3000 times solution.
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