The Shatian pomelo line was caused by the damage of rust mites. Rust niches, also known as rust, are small in size and barely visible to the naked eye. From May to June, it breeds rapidly and harms young fruit and leaves. The sharp mouthparts pierce the fruit tissue of the young fruit, causing the aromatic oil to overflow on the fruit surface. The aromatic oil turns black through air oxidation. The more black oil overflows the thicker. The dying scorpion together with it forms an extremely unsightly large dark spot, resulting in deteriorated fruit quality and poor flavor. In particular, the fruit of the shade is the heaviest. Prevention of rust wall lice, with 25% insecticidal water repellent 1000 times, 65% dexamethasone wettable powder 600 times liquid and 20% aqueous amine sulfate emulsion 1000 times alternate spraying, the effect is good.
Senyuan Biological Technology Co., Ltd. , http://www.hnvitamins.com