2 A 4 chlorine has strong control effect on spinach

The thorny vegetable, also known as the small scorpion, is a perennial perennial weed. It is distributed throughout the country, mainly affecting dry crops such as wheat, cotton, and soybeans. Because its rhizome is very developed, it has strong drug resistance and is difficult to control. Imagine it. According to the pesticide network , 2 A 4 chlorine has certain control effect on spiny vegetables, which can be used after the 4th leaf stage of wheat until before jointing.
According to the field efficacy test results of different herbicides on malignant weeds in 2011, Lu Xingtao et al., Institute of Plant Protection, Tai'an Academy of Agricultural Sciences, used 48% wheat straw in the 2~4 leaf stage of thorny vegetables. Water-repellent agent, 10% bensulfuron-methyl WP, 20% fluoxetine EC, 40% oxazolone water-dispersible granules, 25% octanoyl bromoxynil emulsifiable concentrate, 10% acesulfame emulsifiable concentrate 56% 2 A 4 chlorine soluble powder, 48% herbicide water herbicide weeding, the pure medicinal amount per hectare is 201.6 g, 15 g, 180 g, 30 g, 300 g, 90 g, 800 g, 1000 g The control effects of the number of strains on the larvae were 70.69%, 44.95%, 19.91%, 28.48%, 38.05%, 64.88%, 43.21%, 29.81%, and the fresh weight control effects were 88.67% and 71.63, respectively. %, 48.95%, 53.07%, 55.24%, 84.69%, 63.84%, 57.54%. Dicamba, B fluoroglycofen better control effect on thistle, thistle severe wheat field in both pesticides may be preferred herbicidal.
The dicamba has a systemic absorption effect. It can be sprayed on the stems and leaves of wheat at the seedling stage. The drug can be quickly absorbed by the stems and leaves of the weeds. It is transmitted upwards and downwards through the phloem, and is concentrated in the meristem and the metabolic activity. It hinders the normal activities of plant hormones, thereby causing weeds to die, and various annual and perennial diseases such as swine fever, cockroaches, cocklebur, thorns, leeks, snails, cattle sorghum, sage, and big nests. Broadleaf weeds have good control effects. At 24 hours after the general administration, the broadleaf weeds showed symptoms such as leaf malformation and curling, and died after 15 to 20 days. After the drug is absorbed by the gramineous plant, it can be quickly decomposed and decomposed to cause a strong drug resistance. It is safe for wheat when it is used from the 4th leaf stage of wheat to before jointing. It is forbidden to use before the 4th leaf stage of wheat and after jointing. The dicamba is rapidly decomposed by microorganisms in the soil and is safe for the later crops.
Carbendazim is a post-emergence contact herbicide . After the drug is absorbed by weeds, the protoporphyrin oxidase is inhibited, and tetrapyrrole which is toxic to plant cells is formed, which accumulates and acts to effectively prevent mites. A variety of broadleaf weeds such as medlar, amaranth, Xanthium, Solanum nigrum, purslane, comfrey, and thorny vegetables. The herbicide has a fast action, high activity, and does not affect the crop after cropping. Application of acesulfame in the wheat field, preferably before winter application, the dosage should not be too large, the temperature is required to be above 10 °C, otherwise it will easily cause phytotoxicity, resulting in yellowing of wheat leaves, but generally can be recovered later.