Qiu Chunguang: Under normal circumstances, vegetable varieties are more sensitive to a certain kind of pesticides, or if the drug concentration is high or they do not dry for a long time, they produce phytotoxicity. The damage of young leaves is the most serious, and the yellowing and whitening of the surface is the injury of leaf tissue. Gas damage is mostly manifested as leaf edge damage and discoloration. The upper middle part of the leaf has the strongest absorption and the most serious damage. However, if it only shows that the young leaves turn yellow and white and the leaf tissue itself is not damaged, it is currently cold watering. Excessive quantities of clay are extremely serious in clay land. Frozen Squid Products,Frozen Squid,Frozen Calamari Rings,Frozen Squid Woolworths Zhoushan Fudan Tourism CO., LTD , https://www.fudanfood.com
Cucumber leaves yellow and white
A vegetable farmer in Tanfang, Qingzhou, Shandong Province asked: My greenhouse cucumber leaves a few yellow leaves on the surface, the opposite is not basically discolored, is the injury or harm it?