Fumigation Archives - Page 2 of 4 - Stored Grain | Information Hub for Grain Storage, Quality Control, Insect & Pest Management

GRDC Grains Research Update Online – Grain storage update for the Northern & Southern regions

GRDC Grains Research Update, Online – Grain Storage update for the Western Region. Including topics – Aeration, Back Pressure, Fan performance, Field testing, Fumigation, Phosphine Resistance, Venting.

Getting the most out of ground-level fumigation

Key message
– Ground-level fumigation systems are safer for users, but phosphine can be explosive, so precautions are needed to ensure a safe and effective fumigation.
Phosphine fumigation can now be completed using ground-level application systems, which are much safer as the user does not need to climb to the top of the silo. But some key features and precautions are needed for successful and safe fumigation:

– recirculation;
– space for liberation;
– condensation trap; and
– pressure relief for power outage.

box fan Fumigation Ground level groundcover phosphine recirculation

Successful fumigation: GAS-TIGHT AND JUST RIGHT

Key points
– Successful pest control in storages depends on combining regular grain monitoring, good hygiene, aeration cooling and correct fumigation practices
– Fumigation results rely on a gas-tight sealable storage to achieve the required gas concentrations and exposure times (C x T) to kill all insect pest life stages
– In larger silos (150 to 2000 tonnes) recirculating gases using a small fan during the fumigation ensures rapid, uniform distribution of phosphine gas

concentration Fumigation gas-tight groundcover phosphine Resistance

Sulfuryl fluoride can break phosphine resistance (GRDC Groundcover Supplement)

Using an alternate fumigation chemical to break the development of insect pest resistance will help protect the efficacy of phosphine fumigation

alternate Break Fumigation ProFume Resistance rotate rotation SF Sulfuryl Fluoride

Getting the most out of ground-level fumigation (GRDC Groundcover Supplement)

Ground-level fumigation offers safety benefits to growers but takes a new set of skills to get right

Active box Fumigation Ground level Passive Powered recirculation thermosiphon

Successful fumigation: GAS-TIGHT AND JUST RIGHT (GRDC Groundcover Supplement)

Fumigation results rely on a gas-tight sealable storage to achieve the required gas concentrations and exposure times (C x T) to kill all insect pest life stages. In larger silos (150 to 2000 tonnes) recirculating gases using a small fan during the fumigation ensures rapid, uniform distribution of phosphine gas

concentration Fumigation large Powered recirculation