Introduction Carbon dioxide is an alternative insect pest control option to the most commonly used fumigant, phosphine. Driven largely by market request for ‘organic grain’ or ‘clean & green’, carbon dioxide is usually easier to manage in smaller, gas-tight silos less than 300 tonnes. If using carbon dioxide, it should be referred to as a […]
Authors: Dr Manoj Nayak, DAF, Ecosciences Precinct, Dutton Park Brisbane Introduction Mites are common pests in grain storages and mostly occur in damp or moist grain, residues, oilseeds and animal feeds. They are not readily seen because they are the size of specks of dust. Mites are not insects (which have six legs) but […]
Source Link GRDC Author: Greg Daglish, Queensland Department of Agriculture and Fisheries Take home message A pilot study in southern Queensland demonstrated that combining the use of probe traps in the top of a silo with sieving a grain sample from the bottom was an effective insect detection method. Probe traps inserted into the grain […]
Source link GRDC Author: Andrew Ridley, Philip Burrill and Pat Collins, Queensland Department of Agriculture and Fisheries Take home message Results of trial fumigations conducted in 1,400 t silos to test the capability of these large storages have led the following conclusions: Recirculation greatly facilitates the distribution of gas in large silos Fumigation in large […]
Watch Philip Burrill demonstrate how to fumigate in grain bags.
Grain protectants prevent pests Grain protectants are one of many management tools for preventing pests in stored grain and have a particular role in unsealed storage and seed storage. Key Points: Consider using grain protectants when gas-tight sealable storage is not available and to ensure security of planting seed. Grain protectants work best when combined […]
Click to download a printable sign to hang on a silo during fumigation.
Fumigating with phosphine in unsealed silos does not kill pests at all stages of their life cycle. Repeat fumigations in unsealed silos increases resistance levels and selects for insects with a higher phosphine tolerance. Pressure testing a silo ensures it can hold gas concentrations sufficient to kill all insects at all life stages. Key Points A silo sold […]
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. KEY POINTS Effective grain hygiene and aeration cooling can overcome 85 per cent of pest problems. When fumigation is needed it must be carried out […]
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. KEY POINTS Effective grain hygiene and aeration cooling can overcome 75 per cent of pest problems. When fumigation is needed it must be carried out […]