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Mealy bug threatens cotton crop in state

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Rajendra Khatry

Posted: Jun 18, 2008 at 2239 hrs IST

Chandigarh, June 17 The cotton crop in Haryana, especially Bt cotton, is under threat from mealy bug, which may cause extensive damage to the crop if not controlled in time, said sources in the Haryana Agriculture Department.

In the past, the cotton crop in the state had often been damaged by the American Bollworm. In 2002, the bug had caused severe damage to the crop, ruining a number of state farmers in the process. But in the past few years, the farmers had been getting a good crop. However, now a threat by another bug looms large. It was generally believed that Bt cotton was pest-resistant, but B.S. Duggal, Additional Director, Haryana Agriculture, says Bt cotton is safe only from bollworm and not mealy bug.

What is worrying the cotton farmers is the early onset of monsoon. Rains at this time of the year is good for other crops, including bajra, sugarcane, paddy and pulses, but not for cotton. “A prolonged humid period is conducive to the growth of the mealy bug. Farmers fear their crops may be damaged if the rains continue for a considerable period of time,’’ said Duggal.

A recent study by two scientists of Haryana Agriculture University, Dr R.K. Saini and Dr Paleram, had shown that the presence of mealy bug was more in Sirsa district of the state. The study had shown that there was more presence of black and brown ants on cotton crop damaged by the bug.

The Agriculture Department is advising the farmers to remove the weeds in their fields and make use of pesticides wherever there are signs of the bug. “We have asked the farmers in the state to keep a close watch and destroy all unwanted weeds as mealy bugs are known to survive and thrive on them,’’ said Duggal. This year, the cotton crop had been shown on a smaller area in the state. While last year the total area under cotton crop in Haryana was 86,000 acres, this year it is much less at 80,000 acres, said sources in the state agriculture department.

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Mealy bug threatens cotton crop in state by SURENDER DALAL on 24 Jun 2009

A new exotic bug namely Phenococcus solenopsis is successful in creating a panic among cotton growers,agricuture scientists specially entomologists and state agri.extention service agencies.Though it is considered as a potential threat to cotton cultivation in the state.But three weaknesses of this mealybug are in favour of us.These are: female is wingless,laying og eggs in eggsac and insect being polyphagous.All these characteristics of this mealybug make it more vulnerable to parasites,predators,parasitoids and pathogens ocuuring naturally in Haryana.one parasite,three parasitoids,more than two dozen of predators and three types of pathogens are present and waiting for the mealybug in haryana.Continuous high humidity and temperature favours pathogens. A great ecological balance.thanks to nature.

mealy bug atteck by jaydep senva on 15 Oct 2008

yes,this problem is mager.in gujrat farmer was verry depretoin for mealy bug.but i thout this problem was creat by him.

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