Cotton Blight Control

Cotton blight is also known as rot disease and black root disease. The pathogen is Rhizoctonia solani. Infection can cause bad germs before the seeds germinate. Infestation before germination can cause rotting buds. After the cotton seedlings were unearthed, the yellowish-brown lesions developed at the base of the near-early soil surface. The lesions gradually spread around the entire base.

Senior agronomist Zhang Chuanyi said that cotton blight is also a kind of soil fax fungus disease at the seedling stage of cotton. After the mulching of the plastic film, the adaptability of the cotton seedlings was not good because of the change of the environment. In addition, the weather at that time was often low temperature. Rainy weather and low ground temperature make it easy for blight to occur.

The mycelia, sclerotia, and carriers of bacteria in the soil and the sick and sick are the primary infestation sources of cotton blight. After sowing, the seedlings grow slowly, grow weakly, and are susceptible to infection by bacteria. Cotton cotyledon is most susceptible to disease. Zhang Chuanyi told reporters that the control method for the emergence of blight is to irrigate roots or foliar sprays. It is best to slow down when spraying the leaves so that the liquid can penetrate into the rhizomes, so that the occurrence of blight can be prevented.

Foreign Party 1: For seed dressing, 10 kg of cotton seeds, use Tianda 2116 dip and seed-type bag, 2 to 3 pounds of water + 0.5 g of 99% badewing, and soak after drying.

Prescription 2: 50% carbendazim 800 times or 70% thiophanate-methyl 800 times + 70% mancozeb manganese 600 times.

Prescription 3: Tianda 2116 Zhuangmiaoling 600 times +99% xylloxane 3000 times foliar spray to apply irrigation roots.

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