You are here

fumigant

Catalogue: GRDC Factsheets
Storing oilseeds is more difficult than storing cereal grains as they are more susceptible to quality deterioration and have limited insect control options... The decision to store oilseeds requires a planned approach, careful management and a suitable storage system... Moisture content in oilseeds must be lower than cereal grains because the oil content increases the risk of moulding and quality damage...
Related categories:
Catalogue: GRDC Factsheets
Storing pulses successfully requires a balance between ideal harvest and storage conditions... Harvesting at 14 per cent moisture content captures grain quality and reduces mechanical damage to the seed but requires careful management to avoid deterioration during storage... Pulses stored above 12 per_cent moisture content require aeration cooling to maintain quality...
Related categories:
Catalogue: GRDC Factsheets
The capacity of grain bags varies with bag size, which generally ranges from 40 to 90 metres long, and anywhere from 100 to 300 tonnes depending on the type of grain and how much the bag is stretched during filling... Storing grain at higher moisture content in bags not only compromises grain quality but increases the risk of grain swelling and splitting the bag... Take the bait:Reduce mice numbers by setting up bait stations along the grain bags and keep an eye on creases in the bag as mice tend to attack there first...
Related categories:
Catalogue: GRDC Media
Fumigating with Phosphine, other fumigants and controlled atmospheres.. Phosphine remains the single-most relied upon fumigant to control stored grain pests in Australian grain production systems, but continued misuse is resulting in poor insect control and developing resistance in key pest species... Fumigating with Phosphine, other fumigants and controlled atmospheres covers topics such as pressure testing, silo safety and the application of both phosphine and other options...
Related categories:
Catalogue: GRDC Factsheets
The tolerance for live pests in grain sold off farm is nil... With growers increasing the amount of grain stored on farm, an integrated approach to pest control is crucial... Finally the grain requires approximately 50 hours of appropriate quality air each fortnight during storage...
Related categories:
Catalogue: GRDC Updates
Although we presume there are no insects in grain when being loaded into storage, we generally treat the grain using protectants, or fumigate in gas-tight sealed storage... Fumigating the grain kills any insects present and the aeration maintains grain quality... Always use a mixture of an organophosphate (for example, Fenitrithion , Actellic or Reldan ) with Methoprene (for example, IGR and Diacon ,) either by mixing them together or bought as a 'twin pack' such as Reldan Plus , to protect grain during storage...
Related categories:
Catalogue: GRDC Media
Agri-Science Queensland grain storage specialist Philip Burrill says for grain storage, three key factors provide significant gains for both grain storage pest control and grain quality - hygiene, aeration cooling and correct fumigation. ".. By ensuring that machinery and equipment used to handle grain, including headers, augers, field bins, truck bins, silos and other storages are clean to prevent insect pest contamination of newly harvested grain you have a huge head start. ".. In regards to applying protectant insecticides to grain, a number of grain buyers are now requiring that grain and grain products have nil chemical residues, so you should always check with potential buyers and handlers before you treat with commercially available products such as Fenitrothion, Reldan, and IGR. "Do not use any of these chemical insecticides when storing oilseeds or pulses...
Related categories:
Catalogue: GRDC Updates
Growers strengthen their position when their storage facilities allow flexibility with grain handling and timing of sales... As a bonus, many of the strategies used to minimise pest problems also significantly improve storage conditions for maintaining grain quality... Examples include: the ability to have fans automatically step through the 3 important stages of aeration cooling - "continuous", "purge", "protected"; an additional auto function that now excludes high humidity air (>85% RH) in all three of these stages; a setting that can be included that adjusts fan operations to cater for fans fitted to silos with air flow rates higher then the standard 2 - 3 L/s/t flow rates...
Related categories:
Catalogue: GRDC Final Reports
The review demonstrated the safety and natural occurrence of ethyl formate in the diet... In bin fumigant monitoring: In each trial, ethyl formate and CO 2 levels were measured in five critical places in the silos except Trial 6 in which measurements were taken from one position only... Monitoring systems: The Miran SapphIRe (Thermo Environmental Instruments) programmable infra-red gas analyser was used to measure ethyl formate without interference by CO 2 at occupational exposure levels (100 ppm) and below...
Related categories:
Catalogue: GRDC Media
Fumigation in gas-tight storage is the only option for control of grain pest insects at all stages of their life cycle... But successful fumigation requires knowing how much phosphine gas to apply, when to apply it and the length of time needed for an effective kill... The fact sheet has been developed in consultation with grain storage specialists, including Peter Botta, of PCB Consulting, who says that in order to kill eggs, larva, pupa and adult grain pests, phosphine gas needs to reach, and be maintained at, a concentration possible only in a gas-tight storage...
Related categories:

Pages

Associated key phrases