At last the bollworm
had attacked the cotton--the poison ivy was reaching out its tendrils to entwine the summer boarder--the millionaire lumberman, thinly disguised as the Alaskan miner, was about to engulf our Milly and upset Nature's adjustment.
Flint and technician John Merkle were able to alter the response of male pink bollworms
so they seek unnatural ratios of two components found in their pheromone.
were mostly found in Pollen because the toxin in the Pollen was lower and bollworms
mostly eat Pollen and leaf.
Helicoverpa zea (Boddie) (heliothines) might be difficult to obtain depending upon host plants available to the insects.
Lab work has shown that pink bollworms
already carry gene variants that in certain combinations can provide immunity.
ARS researchers are working with industry to develop cotton that would not be destroyed by pink bollworms
and other lepidopteran insect pests.
Another biotech crop, Bollgard cotton, has been a particular advantage to growers in the Makhathini Flats region of South Africa, one of the poorer regions of the world, where bollworms
traditionally have destroyed up to 60 percent of growers' harvests.
He said that Cotton in Pakistan was mainly damaged by number of Sundies like spotted bollworms
, American bollworms
, pink bollworms
, army worms etc, and mostly cotton growers could not overcome these worms due to number of reasons, and end up great yield losses.
He told that in the 3-day the 5th meeting of the Asian Cotton Research and Development Network (ACRDN) was unique of its nature in which more than 50 papers were read on critical issues confronting cotton production, such as Cotton Leaf Curl Virus (CLCV), bollworms
, sucking insect pests, weeds, drought, use of sewage water, value addition in cotton seed products.
Midwesterners call the insects corn earworms, but farmers elsewhere grumble about cotton bollworms
and tomato fruitworms.
In a 1999 study, the National Center for Food and Agricultural Policy (NCFAP) estimated that 2 million less pounds of chemical insecticides were used to control cotton bollworms
and budworms in six key cotton-producing states during the 1998 growing season, compared to the insecticide levels used prior to the introduction of Bt cotton.
Esquivel at College Station, Texas, have years of expertise developing new tactics to fight two of cotton's worst enemies--cotton bollworms