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Catalogue: Ground Cover
Phosphine needs seal of approval.. Limiting correctly applied phosphine to sealed storages and is the only way to economically control all insects regardless of resistance level or growth stage... The higher the level of resistance, the higher the concentration of phosphine and/or the longer the fumigation period required to control all the life stages of the insect (figure 1)...
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Catalogue: Broadacre Field Crops DAFF QLD
As a general rule, Microplitis has greater impact on near-threshold Helicoverpa populations than against populations in excess of the economic spray threshold for that crop... Microplitis is active in all crops attacked by Helicoverpa , except chickpea because the plant s acid secretions deter predators and parasitoids... In early spring, even low numbers of Microplitis can parasitise a significant proportion of the Helicoverpa population because the Helicoverpa numbers are also low (e.g. in spring mungbeans, sun#owers and sorghum)...
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Catalogue: Broadacre Field Crops DAFF QLD
As a general rule, Microplitis has greater impact on near-threshold Helicoverpa populations than against populations in excess of the economic spray threshold for that crop... Microplitis is active in all crops attacked by Helicoverpa , except chickpea because the plant s acid secretions deter predators and parasitoids... In early spring, even low numbers of Microplitis can parasitise a significant proportion of the Helicoverpa population because the Helicoverpa numbers are also low (e.g. in spring mungbeans, sun#owers and sorghum)...
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Catalogue: GRDC Final Reports
Phosphine concentration: mg/l (ppm).. Percentage progeny reduction of Chinese rice weevils under fumigation of 35% CO2... Ethyl formate concentration (mg/l) Percentage adult mortality 0 2.1..
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