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Catalogue: GRDC Media
Mr McMaster says growers should practice good broadleaf weed control in and around crop areas as SLW has a very wide host range and can rapidly develop resistance to insecticides. ".. Queensland Department of Primary Industries and Fisheries (QDPI&F) entomologists have visited the area and also report cotton fields around St George are at or reaching high densities of SLW. QDPI&F graduate entomologist Zara Ludgate says the whitefly present in the.. Greenhouse whitefly (GHW) and East Australian native whitefly have been common in the past but are easy to control compared with SLW. "It is thought that increased host plant availability from a wet winter/spring, warm conditions and a decline in natural enemies due to the use of broad spectrum insecticides has contributed to the high SLW numbers," Ms Ludgate said...
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Catalogue: GRDC Media
Mr McMaster says growers should practice good broadleaf weed control in and around crop areas as SLW has a very wide host range and can rapidly develop resistance to insecticides. ".. Queensland Department of Primary Industries and Fisheries (QDPI&F) entomologists have visited the area and also report cotton fields around St George are at or reaching high densities of SLW. QDPI&F graduate entomologist Zara Ludgate says the whitefly present in the.. Greenhouse whitefly (GHW) and East Australian native whitefly have been common in the past but are easy to control compared with SLW. "It is thought that increased host plant availability from a wet winter/spring, warm conditions and a decline in natural enemies due to the use of broad spectrum insecticides has contributed to the high SLW numbers," Ms Ludgate said...
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Catalogue: Broadacre Field Crops DAFF QLD
Photograph of Cotton aphids showing variations in colour - some yellow and some black.. Image showing leaf distortion damage caused by cotton aphids.. The cotton aphid may be troublesome during the seedling stage when its feeding may result in plants being stunted...
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Catalogue: Ground Cover
Hart Winter Walk: virus explained to growers.. Ms Davidson explained that when growers first started reporting widespread damage in June it was initially put down to incorrect herbicide use, but as more crops started showing yellowing leaves a different picture emerged... Crops such as chickpeas, lentils and field peas had not emerged when the first round of the virus hit, but Ms Davidson told growers that pulses will also be susceptible to BWYV in spring...
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Catalogue: GRDC Final Reports
No aphids were collected with MACE resistance to carbamate insecticides, including pirimicarb # - the insecticide widely recommended for GPA control in Australia... There was also no evidence of imidacloprid # resistance in Australian GPA. Border treatments were effective in reducing aphid immigration and virus transmission into canola paddocks from nearby sources, but further study is necessary to determine the effects on aphids arriving from longer distances... The results indicate that an 18 m buffer of Gaucho-treated plants has a significant effect on the immigration of aphids and the introduction of virus into canola paddocks when the aphids are arriving from adjacent areas...
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Catalogue: GRDC Updates (West)
Sulfoxaflor is currently being assessed by the APVMA and is expected to be registered by mid 2013 with the trade name Transform Insecticide... The paper presents data from four field trials carried out from 2008 to 2012 showing the efficacy of Transform on the three key species of aphids that attack canola in WA and demonstrate that when registered Transform will be a valuable tool for control of aphids in canola... Formulations used in the study were: Transform Insecticide (Sulfoxaflor 240 SC), Pirimor 500 WG (Pirimicarb), BS-1000 (non-ionic surfactant), and Agral 600 (non-ionic surfactant) (see Table 2 for insecticide and adjuvant rates)...
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Catalogue: GRDC Final Reports
All aphids were moderately to highly resistant to organophosphate (OP) insecticides, while approximately half of aphids tested were at least partially resistant to pyrethroids... Preliminary data has shown that a 20 metre (m) border spray on the crop edge is sufficient to prevent most aphids released adjacent to a wheat crop from successfully colonising the crop... The 2001 and 2002 populations have been evaluated for insecticide resistance against two insecticides: dimethoate # (OP) and alpha-cypermethrin # (SP)...
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Catalogue: GRDC 2014 Research Summaries
In August 2012 the Australian Pesticides and Veterinary Medicines Authority (APVMA) announced that it would conduct a review to look at the use of Neonicotinoid insecticides in Australia (http://www.apvma.gov.au/news_media/chemicals/neonics.php)This work included a consideration of current data requirements for testing of insecticides and the adequacy of current bee warnings on pesticide product labels... One of the draft recommendations arising from the APVMA "s overview report stated.. The APVMA in partnership with other agencies should consider holding a 1-day symposium for a wide range of stakeholders...
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Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Cluster caterpillars are infrequent pests in the South Burnett but are more abundant in coastal and tropical areas where serious damage has been reported from this pest... There are no insecticides registered specifically for cluster caterpillars in peanuts... Cluster caterpillars are coincidently controlled with chemical insecticides targeting helicoverpa...
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Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Cluster caterpillars are infrequent pests in the South Burnett but are more abundant in coastal and tropical areas where serious damage has been reported from this pest... There are no insecticides registered specifically for cluster caterpillars in peanuts... Cluster caterpillars are coincidently controlled with chemical insecticides targeting helicoverpa...
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