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News Flash
Wasp eats insects in cotton crop battle - CSD
17 Jan '07
3 min read
“Up in the Ord it is just the perfect climate for them; they absolutely love it. From the modelling that we did, we found that once they build up to high numbers, they are killing 98 per cent of the helicoverpa eggs."
“Only 2 per cent are actually hatching, and those survivors are ingesting the Bollgard II cotton, so we are getting only a very small amount of exposure to Bollgard II."
“We therefore are decreasing the possibility of resistance and possibly prolonging the sustainability of a potential industry if it were based on Bollgard II."
“I would say that when you have got around 70 per cent raw parasitism from the mid season onward you could probably start moving into insecticide use if you absolutely have to. But, if you want to maintain trichogramma you should not use insecticides."
“I could also suggest habitat manipulation for pre-season crops to make sure you have a nice population of natural trichogramma there ready to move straight into your cotton,” Andrew Davies said."
“Only 2 per cent are actually hatching, and those survivors are ingesting the Bollgard II cotton, so we are getting only a very small amount of exposure to Bollgard II."
“We therefore are decreasing the possibility of resistance and possibly prolonging the sustainability of a potential industry if it were based on Bollgard II."
“I would say that when you have got around 70 per cent raw parasitism from the mid season onward you could probably start moving into insecticide use if you absolutely have to. But, if you want to maintain trichogramma you should not use insecticides."
“I could also suggest habitat manipulation for pre-season crops to make sure you have a nice population of natural trichogramma there ready to move straight into your cotton,” Andrew Davies said."
Cotton Seed Distributors Ltd
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