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What are the key points of knowledge about mixing pesticides?
In recent years, vegetable nematode disease has become an important type of disease in vegetable production, especially in protected vegetable production. It occurs rather commonly, causes relatively severe damage, and is also relatively difficult to control. For the control of vegetable nematode disease, in addition to some conventional agricultural control measures (such as selecting resistant and tolerant varieties, cultivating disease-free seedlings, rational...
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What insecticide is effective for controlling rice stem maggot
Rice stem maggot has broken out and caused serious damage in most rice-growing areas in China in recent years. At present, an insecticide for controlling pests such as the rice stem maggot has been successfully invented. The purpose of this invention is to provide a highly effective and low-toxicity insecticide specifically for controlling the rice stem maggot pest. The insecticide of this invention is made from fipronil and imidacloprid...
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What role do viral insecticides play in controlling cotton bollworm
1. An important feature of insect viruses in pest control is their host specificity. In integrated pest management systems, this is an ideal control method choice for controlling pests (not a blanket kill-all), and the potential of beneficial insects in the entire ecosystem is utilized. Viral pesticides participating in biological control are a means of ecological management, with the purpose...
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What are the characteristics of benzoylurea insecticides?
For early and mid-season sweet peppers, to increase the fruit-setting rate, besides physical regulation, you also need to choose a good growth regulator. Only by combining both approaches can the fruit-setting rate be better improved: 1. Improve lighting conditions and raise the temperature. In cloudy, snowy, and low-temperature weather, you can add supplemental lighting in the greenhouse, and at the same time hang reflective screens on the back wall to increase...
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Insect growth regulators can be used for diamondback moth control
The appearance of the diamondback moth seriously affects the growth of crops, so pesticides such as insect growth regulators are chosen to completely eliminate it. First, 10.8% pyriproxyfen emulsifiable concentrate can be sprayed as an 800-1500 times dilution; second, 5% chlorfluazuron emulsifiable concentrate 30-60 ml mixed with 30 jin of water can be sprayed; third, 5% emamectin benzoate water-dispersible granules 5 g mixed with 30 jin of water can be spr...
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Timely application of regulators to wheat boosts stress resistance and yield
1. Paclobutrazol. At the wheat jointing stage; spray 50 kg of a 200 ppm paclobutrazol solution per mu, which can dwarf the plants, enhance lodging resistance and drought resistance. It can also control powdery mildew and improve the plant's absorption and utilization of nitrogen. 2. Chlormequat. For wheat fields with large populations and vigorous growth, at the wheat jointing stage, use 40-50 kg of a 40-50 ppm solution made from 5% chlormequat aqueous solution per mu...
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Five precautions for using regulators in cotton fields
1. Pay attention to the scope of application. Cotton fields suitable for plant growth regulators must have good water and fertilizer conditions, and the cotton must show a tendency to excessive growth or already be growing excessively. They must not be used in cotton fields where the climate is dry and irrigation is not possible, where growth is weak, or where growth is inhibited by pests and diseases. 2. Pay attention to the application period. Mepiquat chloride generally...
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How to use growth regulators on cherry tomatoes? Application differs by type
Cherry tomato varieties fall broadly into two types: one is the indeterminate type, whose top does not terminate and which can keep growing continuously; the other is the determinate type, which automatically terminates after growing a few leaves and continues growing upward via side branches. The management of these two types differs little, but there is a considerable difference in growth regulator application....
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What are the precautions for using post-emergence herbicides in corn fields?
I. 2,4-D butyl ester. (1) Causes of phytotoxicity. Applying the herbicide too late, at too high a dose, or unevenly can cause phytotoxicity. (2) Symptoms of phytotoxicity. When the herbicide is applied to the soil, the young shoots bend and the young roots grow upward, then later return to normal. When the herbicide is applied to stems and leaves, the stems become twisted, the leaves become narrower, ...
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Which herbicides can be used after wheat emerges?
Wheat and weeds differ in their sensitivity to herbicides at different stages, and the safety of herbicides to wheat also varies; the performance of various herbicides differs, so it is very important to correctly grasp the application timing, especially when applying herbicides from the jointing stage of wheat to the young ear differentiation stage, where even more attention should be paid to the safety of the herbicide to wheat. At present, ...
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