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How to identify and control virus disease in stem lettuce? Aphid control is key
Stem lettuce virus disease can occur throughout the entire growth period. Diseased leaves become mottled, shrunken and distorted, and plants become stunted. It is mainly transmitted by aphids and through sap. This article introduces the symptoms, transmission patterns and four control measures to help you manage it scientifically and reduce yield loss.
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What Is Ningnanmycin? A Detailed Guide
What is Ningnanmycin? What diseases can Ningnanmycin control? How effective is Ningnanmycin? Please provide an introduction. Ningnanmycin is a new type of broad-spectrum biological pesticide with fungicidal, antiviral, growth-regulating and growth-promoting effects. It was discovered and successfully developed by the Chengdu Institute of Biology, Chinese Academy of Sciences, with...