The red-edged lamp moth is a genus of lepidoptera lamp moths. Also known as the red-sleeved lamp moth, the red-edged lamp moth. It is harmful to broccoli, mustard greens, cabbage, cherry radish, hollandaise beans, lentils, sweet corn and other vegetables.
<b>Infestational characteristics</b> are larvae that nibble on the young leaves, flowers and fruits of vegetables, affecting yield and quality.
<b>Morphological characteristics</b> Adults are 18 to 20 mm long and have a wingspan of 46 to 64 mm. The body and wings are white, the leading margin of the forewings and the end margin of the cervical plate are red, and the back of the abdomen is orange-yellow except for basal segments and clusters of hairs, with septated black bands. The body length of the old mature larvae is about 40 mm. The head is yellowish brown , the carcass is dark ochre or black , and the whole body is covered with long reddish brown or black hairs. The thorax and feet are black and the gastropods are red. Young larvae are grayish yellow in color. The egg is hemispherical, 0.79 mm in diameter, and the surface of the egg shell has radial longitudinal stripes from the top to the periphery, yellowish white and shiny at the beginning of birth, and then fades to grayish yellow to dark gray, and the egg hole is reddish and later black. The pupa is oval, 22 to 26 mm long, 9 to 10 mm wide on the thorax, black-brown, shiny, 10 segments on the abdomen, and a yellow-brown silk cocoon on the outside. Female pupae have a reproductive foramen in the center of the ventral surface of the 8th abdominal segment, and the male pupa has 10 rump spines at the end.
Red-edged lamp moth larvae Red-edged lamp moth pupae Adult red-edged lamp moth
<b>Life habits</b> occur in 1 to 3 generations, pupae overwinter, and feathering begins in May and June of the following year. Eggs are laid in chunks on the back of the leaves, up to hundreds of grains. The larvae feed in clusters when they first hatch, and disperse after three instars. Low-pitched larvae are agile. The egg stage is 6 to 8 days, the larval stage is 27 to 28 days, and the adult lifespan is 5 to 7 days.
Prevention and control methods
1. Use black light to trap adult insects and reduce the source of insects in the field.
2. Early inspection of the wasteland around the cruciferous, leguminous vegetables and other pest host fields, found that a large number of larvae migrated to the vegetable field, which can be dug and killed.
3. Timely application of medicine and control before the larvae are three times. You can choose 25% urea no. 3 suspension 500 ~ 800 times liquid, or 5% nongment emulsion 1000 ~ 1500 times liquid, or 5% anti-Taibao emulsion 3000 ~ 4000 times liquid, or 20% insecticidal urea suspension 3000 ~ 4000 times liquid, or 10% Torrebol suspension 1500 ~ 2000 times liquid, or 2.5% strong and efficient cypermethrin emulsion 2000 ~ 3000 times liquid, or 5% kadulk emulsion 1500 ~ 2000 times liquid, or 5.7% Baishude emulsion 3000~ 4000 times liquid spray.
bibliography
1. China Agricultural Press, Zheng Jianqiu, "Modern Vegetable Disease and Pest Identification and Control Manual";
2. Chongqing University Press, by Zhang Weiwei, Insect Genealogy.