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What is the best time to spray pesticides in summer?
When is the best time to spray pesticides in summer? Why should you not spray pesticides at noon in summer? Below, Gengzhongbang Planting Network gives a brief introduction for netizens' reference. When spraying pesticides in summer, whether for grain crops, vegetable crops, cash crops, or fruit trees, etc., the best time is around 8 to 10 a.m. and around 5 p.m...
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What precautions should be taken when spraying herbicides in winter?
What are the characteristics of using herbicides in winter? How can herbicides be applied in winter for good results? Experienced readers are also asked to help answer. Generally, when herbicides are applied during low-temperature periods, the efficacy is released slowly, the ability of weeds to absorb the chemicals decreases, and control effectiveness is reduced. Therefore, when applying herbicides in winter, the following key points should be mastered....
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What is the best time to spray rice to kill insects and treat diseases?
When is the best time to spray rice to kill insects and treat diseases for good results? How should rice pests be controlled? We also ask experienced netizens to help introduce this. Pest and disease control in rice is the primary prerequisite for a bumper grain harvest, so Zhongdiwang has compiled the best control methods for rice pests and diseases, listed in detail below for netizens' reference. 1...
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Why spray cucumber plants with ethephon in summer and autumn?
Why should cucumbers be sprayed with ethephon in summer and autumn? How do you spray cucumbers with ethephon? Experienced netizens are also asked to help explain, because the cucumber is a monoecious crop with unisexual flowers pollinated by cross-pollination, and the timing and number of female and male flowers appearing have a decisive impact on cucumber yield and economic returns. During the summer and autumn cucumber growth and development stage...
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Which pesticides are prone to causing phytotoxicity when sprayed on fruit trees
Which pesticides can cause phytotoxicity in fruit trees? Please give an introduction. Pesticides that can cause phytotoxicity in fruit trees include: Omethoate: Apricot, pear, peach, fig and other fruit trees are sensitive to this pesticide solution at dilution concentrations below 1500 times, and phytotoxicity is very likely to occur when sprayed. In addition, during high-temperature seasons (above 30°C), use it as little as possible...
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Why does spraying herbicides cause phytotoxicity?
Which types of herbicides should not be used on lawns? Seeking advice: try not to use the following lawn herbicides: 1. Herbicides with a long residual life, including imidazolinone herbicides such as imazethapyr, sulfonylurea herbicides such as metsulfuron-methyl, tribenuron-methyl, tribenuron-methyl, etc., and heterocyclic herbicides such as clomazone, etc. These types of herbicides have a relatively long residual life in the soil, and once used...
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What is the best time to spray insecticide on rice?
When is the best time to spray insecticide on rice? The following points should be noted when spraying insecticide on rice: Do not spray insecticide on rainy days; this is basic common sense that farmers understand, but many farmers often spray at noon on sunny days, which is highly inadvisable and harmful, because: 1. At noon, light...
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What is the best time to spray insecticide on rice?
Do not spray insecticide on rainy days; this is basic common sense that farmers understand. However, many farmers often spray at noon on sunny days, which is highly inadvisable and harmful, because: 1. At noon, the light is strong, and pests hide on the undersides of leaves and inside stems, so the insecticidal effect is poor; 2. Under high temperatures and strong light, the pesticide volatilizes and decomposes late...
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How to choose insecticide application timing and spraying site
1. Chlorpyrifos is prone to causing phytotoxicity when used during the melon seedling stage, and its use should also be avoided during the flowering period of some crops. 2. Pesticides containing triazophos are not suitable for use on fruit cane, as they easily cause phytotoxicity. 3. Because phoxim decomposes readily when exposed to light, its use should be avoided during the watermelon growing period and the seedling stage of radishes and leafy vegetables (even during the growing period...
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Two key points to master when spraying insecticides
First, choose the favorable time period for application according to climate characteristics and the pests' day-and-night activity patterns. The best application times are 9-10 a.m. and after 4 p.m. This is because at 9-10 a.m., the dew on crop leaves has already dried, and it is precisely when diurnal pests are most active. Applying the insecticide at this time will not...
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