Tablets, pellets, or bags can be introduced into the grain stream as it is placed in storage or probed in with a grain probe afterwards. Read the label to determine how long the bin should be sealed. Fumigation is temperature-dependent, so bins must be kept sealed longer when temperatures are cooler. Aerate thoroughly after the exposure period. The lesser grain borer may have a light to moderate resistance to phosphine gas.
Resistance is due to inefficient fumigation practices such as inadequate sealing of the bin.
Methyl bromide is an effective srored grain fumigant for flat storage. It should not be used in on-farm bins . Fumes from methyl bromide use are highly toxic to all animals. This fumigant should not be used to fumigate grain being stored for seed because it may reduce germination. Remember, methyl bromide is extremely toxic and should only be used by trained people who follow all safety precautions.