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How to scientifically select herbicides for spice crops
Precautions for herbicide use During the use of herbicides in vegetable plastic-film mulching cultivation, in order to achieve safety, economy and effectiveness, the following points should also be noted in operation: 1. During herbicide application, the amount of water used to dilute each 667 sq m dose must not be less than 40-50 kg at minimum; only by ensuring wet...
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After using which herbicides can you not plant sunflowers in the following crop
If Pursuit (imazethapyr, imazethapyr acid) was used on the previous crop, there must be an interval of 18 months before planting sunflowers; for chlorimuron-ethyl (chlorimuron) there must be an interval of 18 months before planting sunflowers; if the per-hectare rate of nicosulfuron exceeds 60 grams of active ingredient, that is, more than 100 milliliters per mu of 4% nicosulfuron, there must be an interval of 24 months before planting...
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Which herbicides should be used with caution on flowers, plants and nursery stock?
When choosing herbicides, note that many herbicides are not suitable for use in gardens, flower nurseries and lawns. 1. Post-emergence herbicides for controlling broadleaf weeds. MCPA, 2,4-D, bentazone, dicamba, fluroxypyr, chlorimuron, clopyralid, haloxyfop and others must not be used in nurseries, gardens or Zoysia matrella lawns. ...
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Three key points for good herbicide efficacy to remember
1. Pay attention to applying the herbicide before the seedlings emerge as much as possible. Chemical weeding in vegetable fields mostly uses soil treatment, but it must be applied before sowing or before emergence after sowing, and the best time to apply it is at the initial stage of weed growth. This can avoid or reduce contamination of vegetables by the chemical. 2. Pay attention to making the soil level, fine and moist. When using...
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5% aldicarb granules is a new type of highly effective broad-spectrum insecticide
During the cultivation of watermelon and muskmelon, they are often harmed by various pests. Here are several highly effective and low-toxicity insecticides recommended for farmers to use in production: 1. Imidacloprid. Also known as Yibianjing, Dagongfu, Yashijing. It is a highly effective broad-spectrum systemic insecticide with toxic and contact action, and is effective against piercing-sucking mouthpart pests...
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Which pesticides and insecticides can be used on pollution-free vegetables
Biopesticides: BT, whose Chinese name is Bacillus thuringiensis, is a bacterial insecticide. This variety has been fully used in the main vegetable-growing areas of our country and has achieved relatively good economic benefits. However, there are currently many BT manufacturers, and quality varies, so a high-quality variety must be selected when using it. Precautions: BT works...
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What are the precautions for using insecticides during the melon seedling stage?
Melon seedlings are sensitive to many insecticides and are highly prone to pesticide damage, so insecticides must be used with extra care. For pests such as ground beetles, a moat method can be used: dig a small ditch around the seedbed, line it with waterproof plastic sheeting, then fill it with water and add Shennongbao or Amaier to form a barrier, which is very...
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Is adding laundry detergent to rice pesticides really effective?
The choice of rice pesticides affects the operator's health, the control effect, the cost of use, and their pollution of the environment and rice. 1. Low toxicity does not mean low efficacy, and high toxicity does not mean high efficacy. The toxicity of a pesticide is not classified according to its toxicity to pests, but according to its toxicity to mammals. For pests...
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What are the precautions for using bacterial biological insecticides?
Bt is a bacterial biological insecticide commonly used in vegetable production today, and its effect on controlling Lepidoptera larvae is especially pronounced, but the following points should be noted when using it: 1. Check whether the quality of Bt passes muster; this can be tested by "smelling." Normal Bt products all contain a certain amount of bacteria; when the lid is opened...
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How can pesticides be mixed to improve their effectiveness?
With the adjustment of the agricultural industrial structure, vegetable production has developed rapidly, and the planting area of cabbage among cruciferous crops has expanded year by year. This has provided abundant food for the diamondback moth and the cabbage caterpillar, which prefer cabbage-type vegetables. In addition, the short generation cycle of the diamondback moth and the cabbage caterpillar and their high egg-laying capacity have made them a major pest of cruciferous...
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