Scientific name Leucania venalba (Moore) Synonyms Mythimna venalba (Moore) Lepidoptera, Noctuidae. Distributed in North China, South China, South China and other places. Often mixed with the armyworm mixed damage.
The host, the characteristics of the damage with the armyworm.
Morphological characteristics Adult body length 11-13mm, wingspan 27-29mm, yellow-brown foregret, midrib general dry white straight to the base of the wing, surrounded by white lines with dark lines. Egg length 0.6mm, elliptic to bread-shaped, with fine mesh surface. The larvae are light blue to yellowish-green, brown-brown on the head and brown on the upper octopus. The cranial region was covered with fine lines, and the color near the outer part of the monocular was darker, dark brown, and the remainder was light yellow-brown. The valve was light yellow-brown and surrounded by black. The cockroach is similar to the armyworm, but the l of the outer side of the caudal end of the cockroach grows significantly.
The habits of algebra in North China are unknown. Guangdong is born 5-6 years old, 6 generations old in Fujian, larvae and cockroaches winter. Often mixed with armyworm, Locust, etc., but the amount is small.
See armyworm for control methods.
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