What is Flos Lonicerae Brown spot? How to prevent and cure it?

What is Flos Lonicerae Brown spot? How to prevent and cure it? Please introduce Flos Lonicerae Brown spot: 1. Damage symptoms: the disease mainly harms the leaves, with small yellow-brown spots on the leaves at the initial stage, and several small spots fused together in the later stage, showing round or polygonal spots limited by leaf veins. When wet, the back of the leaf is also covered with gray frost, and when dry, the middle part of the spot is easy to break. When the disease was serious, the leaves withered and yellowed and fell off in the early stage. 2. Prevention and control methods: (1) pay attention to removing diseased leaves at the initial stage of the disease in order to prevent the spread of the disease. (2) strengthen cultivation management and improve plant disease resistance. (3) increasing the application of organic fertilizer, controlling the application of N fertilizer and applying more P and K fertilizer to promote the growth of tree potential and the ability of disease resistance. (4) attention should be paid to timely drainage in rainy season to reduce soil moisture. (5) proper pruning to improve ventilation and light transmission in order to control the occurrence of diseases. (6) pruning in autumn and winter, removing diseased branches and buds, cleaning ground fallen leaves, concentrated burning or deep burial, so as to reduce the source of germs. (7) the initial stage of the disease with 70% thiophanate methyl wettable powder 800 times solution or 70% mancozeb wettable powder 800 times solution, spray every 7-10 days, spray 2-3 times, pay attention to alternate application, have a better control effect. Click to get more honeysuckle planting technology click to get more medicinal material planting technology