What are the causes of cotton diseases

Poor-quality seeds, low temperatures with high humidity, and careless sowing are factors in the occurrence of cotton diseases.

1. Climatic conditions Various pathogens of cotton diseases multiply rapidly under high-humidity conditions, while low temperatures are unfavorable to the growth and development of cotton's young roots. In some early-sown cotton fields, under conditions of spring cold and overcast rain, the young roots grow slowly while pathogen infection is frequent, easily causing seed rot and sprout rot.

2. Seed quality Seeds with low maturity, or that have absorbed moisture and become moldy, are prone to seed rot and sprout rot; this not only hinders emergence, but most seedlings after emergence are also weak and easily infected.

3. Tillage and cultivation measures In continuous-cropping cotton fields, pathogens accumulate in large amounts, making disease more likely than in intercropped or rotation wheat fields. The longer the continuous cropping years, the more severe the disease. In cotton fields with low-lying terrain and poor drainage, soil humidity is high, ground temperature is low, aeration is poor, and the cotton seedling root system develops poorly, making disease likely; careless land preparation or tillage, with many clods, or sowing with too thick a soil cover, both affect cotton seedling emergence and lead to severe disease; sowing too early causes cotton seedlings to emerge slowly and makes disease likely.