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The pink bollworm (Pectinophora gossypiella; Spanish: lagarta rosada) is an insect known for being a pest in cotton farming. The adult is a small, thin, gray moth with fringed wings. The larva is a dull white caterpillar with eight pairs of legs [1] with conspicuous pink banding along its dorsum. The larva reaches one half inch in length.
Pectinophora is a genus of moths in the family Gelechiidae.Perhaps the best known species is the pink bollworm, Pectinophora gossypiella (Saunders). P. gossypiella is one of the world's most destructive insect pests that causes terrible damage to cotton bolls.
Diparopsis castanea, red bollworm: central-southern Africa; Earias insulana, spiny bollworm: Africa; Helicoverpa zea, the American bollworm or tomato grub; Helicoverpa armigera, the Old World bollworm; Pectinophora gossypiella, pink bollworm: Africa; Pectinophora scutigera, pink-spotted bollworm: Australia
The boll weevil (Anthonomus grandis) is a species of beetle in the family Curculionidae.The boll weevil feeds on cotton buds and flowers. Thought to be native to Central Mexico, [1] it migrated into the United States from Mexico in the late 19th century and had infested all U.S. cotton-growing areas by the 1920s, devastating the industry and the people working in the American South.
Pectinophora scutigera, the Queensland pink bollworm or pinkspotted bollworm, is a moth of the family Gelechiidae. It was described by Holdaway in 1926 from Australia, where it occurs in coastal and central Queensland. It has also been recorded from Hawaii, New Guinea, Micronesia and New Caledonia. [1]
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: Red or Sudan bollworm, Diparopsis castanea; Rough bollworm, Earias perhuegeli; Spotted bollworm, Earias fabia; Spiny bollworm, Earias insulana; Spotted bollworm, Earias vittella
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. It is a major pest in cotton and one of the most polyphagous and cosmopolitan pest species.
The hypothesis was that sterile males mating with the few surviving females, who had developed resistance, would lead to a decrease in pests in the following generation. There was a dramatic reduction in pink bollworms, with only two pink bollworm larvae being found by the third year of the study. [17]