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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.
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: The most common moths known as bollworms are:
In November 2009, Monsanto scientists found the pink bollworm had become resistant to the first-generation Bt cotton in parts of Gujarat, India - that generation expresses one Bt gene, Cry1Ac. This was the first instance of Bt resistance confirmed by Monsanto anywhere in the world.
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.
The mature female lays eggs in an egg sack of white wax, usually in clusters on the twigs, branches, and bark of the host plant, and also on the plant's leaves and terminal ends. Eggs are initially orange in color but turn pink on maturity. Egg development takes between 3 and 9 days.
Many species of owlet moths are considered an agricultural problem around the world. Their larvae are typically known as "cutworms" or "armyworms" due to enormous swarms that destroy crops, orchards and gardens every year. The Old World bollworm (Helicoverpa armigera) produces losses in agriculture every year that exceed US$2 billion. [30]