Bollworm - Wikipedia
Bollworm is the common term for a moth larva that attacks the fruiting bodies of certain crops, especially cotton. The most common moths known as bollworms are:
Bollworm | Cotton Pest, Maize Pest & Tomato Pest | Britannica
Bollworm, any larvae of various moths (order Lepidoptera), including the pink bollworm (Pectinophora gossypiella, family Gelechiidae) and some Helicoverpa species. While these larvae are mostly known for the damage they inflict on cotton bolls, a …
Cotton Bollworm - Kansas State University
2024年5月13日 · Bollworm management is based on scouting for eggs and small larvae. Treatment is recommended when there are 10 eggs, or five small larvae, per 100 plants during early bloom in late July and early August.
Cotton Bollworm / Cotton / Agriculture: Pest Management …
Cotton bollworms are attracted to succulent, rank-growing cotton plants; keep water, fertilizer, and plant density at recommended levels to avoid rank growth. Because populations seldom reach damaging levels before late summer, manage the crop for early maturing and plan to …
Old World Bollworm - Animal and Plant Health Inspection Service
2024年3月29日 · Old World bollworm (Helicoverpa armigera) is an important agricultural pest that feeds on more than 180 plant species, including corn, cotton, small grains, soybeans, peppers, …
Bollworm and Tobacco Budworm - Texas A&M University
Budworms are more resistant to certain insecticides (for example, pyrethroids) than are bollworms, but more sensitive to the Bt toxins in transgenic cotton. Aphids and other secondary pests may increase when broad-spectrum insecticides targeted at budworms or boll- worms disrupt natural control.
Cotton bollworm - Wikipedia
Cotton bollworms are a significant pest of cotton. [1] "A major pest in hot countries of irrigated crops. Enters into a summer diapause when irrigated crops are not present and the soil and air temperatures are high. When the end of the dry season comes, the rain cools the soil and pupae come out of diapause." (Nibouche 2004)
Helicoverpa armigera - Wikipedia
Helicoverpa armigera is a species of Lepidoptera in the family Noctuidae. It is known as the cotton bollworm, corn earworm, Old World (African) bollworm, or scarce bordered straw (the lattermost in the UK, where it is a migrant). [2][1] The larvae feed on a wide range of plants, including many important cultivated crops.
Bollworms | NC State Extension - North Carolina State University
Bollworm, also called corn earworm and soybean podworm, can be a significant square and boll-damaging pest of cotton in North Carolina, especially following foliar insecticide sprays for other insects.
Bollworm - an overview | ScienceDirect Topics
Already problems have been encountered in the United States and Australia in B.t. cotton with bollworms. In the United States, corn earworm (H. zea) populations invaded limited acreages of B.t. cotton in Texas, virtually destroying the crop because of their high tolerance to Cry1Ac.
- 某些结果已被删除