Sumac moth
The scientific name is to be determined. Distributed in North China and East China.
The hosts are millet, millet, and millet. It is one of the stemworm pests.
Damage characteristics The larvae were invaded from the base of the seedlings of millet and other victim crops. They first traversed the larvae in the larvae and then drilled upwards to feed on the stem and pulp. The seedlings showed dead heart, and the pods were smaller than the millet ash.
Morphological characteristics The adult body is about 5mm long, yellow-brown, long hair on the front wing, long hair on the inner margin, thick and short hair on the outer edge. The fins have 2 ovoid black spots, one centered and the other inner upper. The two wings are arranged in a wedge shape when folded. The final instar larvae have a body length of about 8 mm, milky yellow, l black "clamp-shaped" patches on the pronotum, and 2 black round spots on the hips of the abdomen. The brown rings formed between the chest and abdomen are obvious.
Life habits are more than 2 generations old. The first generation of larvae appeared in the valley in mid-May, entered the end of May with a period of destruction, began to phlegm at the end of June, and became the first generation of millet moth in mid-June. The second-generation larvae emerged from late June to late July and continue to harm summer valleys, crickets, crickets, and so on.
Control methods (1) spray 2% dimethoate powder, 1.5-2 kg per 667m2. (2) See Millet Ash for other methods.
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