Sunflower brown spot, also known as spot blotch. Seedlings, seedlings can be the incidence. Cotyledons and seedlings were infected with diseased leaves with nearly brownish lesions on their leaves, with yellow halos in the periphery and pale spots on the back of lesions. Diseased lesions of adult plants were polygonal, brown, and yellow halos, and black spots were generated on later stages of the lesions, ie, pathogenic conidia. It is rainy and wet, and the lesions are easily peeled off or perforated. The lesions that are heavily diseased are fused and the entire leaves die. Stems and petioles infected with diseased spots brownish strips. Control methods: selection of varieties resistant to brown spot; after the harvest in autumn, clean the pastoral areas, remove the sick leaves, and burn them in a concentrated manner; and encourage the use of compost or decomposed organic fertilizers made from fermented bacteria. The diseased leaves were removed at the early stage of disease. If necessary, 30% alkaline copper sulfate colloidal suspension was sprayed with 400-500 times liquid; 50% benomyl WP was used as 1500 times liquid once every 10-15 days for one or two times. Fish Fillet Fish Fillet,Crusted Cod,Hake Fillets For Sale,Salmon Fish Fillet ZHEJIANG EVERNEW SEAFOOD CO.,LTD , https://www.evernewseafood.com