Artemisia leaf blight control method

Symptoms

Leaf lesions are irregular to round and irregular, brownish brown, faded grayish-brown to grayish in the middle part, brown on the edges, and when the humidity is high, dark gray mold layer appears on the surface of the leaf. This is the symptoms of the disease. spore). In severe cases, the lesions commensurate with plaques, eventually causing the leaves to die.

Control methods

(1) Strengthen fertilizer and water management. Pay attention to the application of phosphorus and potassium fertilizer, to avoid partial application of nitrogen fertilizer, timely spraying foliar fertilizer; moderate watering, prevent dry and wet tone, promote strong but not over-prosperous plant, stable growth and stability, and enhance resistance to disease.

(2) Spraying and controlling disease at the early stage of disease. Optional spray 40% triadimefon carbendazim WP 800 to 1000 times, or 20% Shibaoling Suspension 1000x, or 75% chlorothalonil+70% Mancozeb (1:1) 1 000 to 1 500 times liquid, or 40% triadimefon sulfur sulfuric acid suspension 800 times, 7 to 10 days 1 time, 2 to 3 times, before close dense, staggered spray, spray evenly enough.

Dehydrated Green&Red Bell Pepper

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