The pink bollworm is an insect known for being a pest in cotton farming.
The pink bollworm is native to Asia but has become an invasive species in most of the world’s cotton-growing regions.
Pink bollworm larvae specifically target cotton and are difficult to control because this damaging stage is found inside the boll. The female moth lays eggs in a cotton boll, and when the larvae emerge from the eggs, they inflict damage through feeding. They chew through the cotton lint to feed on the seeds.
The National Cotton Council of the USA estimates that the pink bollworm costs American cotton producers more than US$32 million each year in control and yield losses.
News was reported that:
Pink bollworm threatenscotton crop in M’wada
Prasad Joshi | TNN | Jul 28, 2020
Aurangabad: Pink bollworm has been found to have infested cotton crops in some parts of Marathwada, prompting the authorities concerned to ask farmers to use pheromone traps and pesticides.
The danger to the ‘cash crop’ from the pest ahead of likely bumper
kharif season due to the good monsoon has left the farming community worried in
Marathwada, which is known as the cotton cultivation belt.
Vasantrao Naik Marathwada Agricultural University, Parbhani, has alerted the farmers against the attack of pink bollworm on the cotton crop.
‘Pink bollworm is out of control in India’
KV Kurmanath, Hyderabad | March 13, 2019
That pink bollworm has developed resistance to Cry1Ac and Cry2Ab (or Bollgard-II) — the two biotech solutions currently available in India to tackle pink bollworm — is no news.
Virulent attack of the pest is destroying the fibre crop on lakhs of acres across the country, particularly in the West, Central and Southern parts.
An American pink bollworm expert says that it is impossible to tackle the menace with the current two Bt toxins being used in the country. “It has gone out of control. It’s too late. Too little,” he points out when asked about the likely control mechanisms.
“The two genes that are being used in India are now ineffective. The resistance is widespread. There is no way we can set the clock back if we use these two Bt toxins,” Bruce Tabashnik, Head of Department of Entomology at the University of Arizona, who studies pest resistance and has done extensive study on pink bollworm and its resistance to Bt toxins, told BusinessLine.
Along with the deficient rainfall, the pest has triggered concern among farmers, even as futures and spot prices of ginned cotton continue to rule firm.
Pink bollworm resistance towards the insecticides is a major issue of concern. Preventative treatment that might be applied during the pre-bloom period is discouraged because this can destroy many beneficial forms that keep bollworms and other pests under control. What can be done to get rid of the bollworms?
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