How to control sorghum ear grain borer?
How to control sorghum ear grain borer? Please introduce the method of sorghum spike grain borer which mainly harms sorghum spikelets and grains. The harm of loose panicle type was less than that of tight panicle type. Adults lay eggs in the ear, and after hatching, the larvae feed on the grains in the process of grain filling, resulting in a large number of grain losses. The weather of high temperature and humidity is seriously harmful. Drug control should be used in the ear before the third instar of the larva. 1.40% dimethoate EC 1500-2000 times liquid spray. 2. The above solution is packed in a basin, gently bend and soak the head of the ear, so that the liquid is attached to the ear. 3.1.5% dimethoate powder was packed in a gauze bag and sprinkled on the ear head when the dew was not dry in the morning. 4.1% carbaryl powder, using the same method as 3. 5. Pyrethroid pesticides are non-toxic to sorghum, can kill many kinds of pests, and can be combined with the control of armyworm, drilling insects, aphids and so on. Click to get more sorghum planting technology click to get more grain planting technology
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What is mung bean powdery mildew?
What is mung bean powdery mildew? Please introduce the symptoms of mung bean powdery mildew: small white powdery spots scattered on the surface of the leaves. When the climate is suitable, the spots expand rapidly, and the diseased leaves are covered with powdery matter, that is, pathogenic hyphae, conidiophores and conidia. After the young pod is damaged, it is deformed and the surface is powdery.
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What is sorghum black onion mold root rot?
What is sorghum black onion mold root rot? Please introduce and guide the prevention and control methods of sorghum black onion mildew root rot symptoms: seedling stage, adult stage can occur. In the seedling stage, the disease appeared like water-deficient wilting, the cortex and vascular bundles of the diseased seedlings showed brown water stains, and the fine roots softened and rotted. The infected leaves of adult plants droop and curl slightly.
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