Skip to content
menu icon

Author: Chris Warrick

8 results found:
  • Common misunderstandings surround phosphine fumigation
    Common misunderstandings surround phosphine fumigation
    Author: Chris Warrick, 2023-10-25T09:00:00+11:00

    Powered fumigation recirculation boxes for large silos aim to allow phosphine to be applied at ground level and distribute gas through the storage more evenly. Recirculation can also be achieved safely and effectively by still applying the phosphine in the storage headspace and using a small fan plumbed between the headspace and base of the silo to recirculate gas.

  • The future of on-farm grain storage
    The future of on-farm grain storage
    Author: Chris Warrick, 2023-02-10T09:00:00+11:00

    The Rethus family are known in the Horsham area for being innovative, trying new ways of doing things and embracing technology. When it comes to on-farm grain storage, the approach is no different. After running an on-farm grain storage workshop at the Rethus’ farm in 2019, GRDC grain storage extension team leader Chris Warrick caught up with Tim Rethus to see what he is doing with on-farm storage.

  • Care required as low-level phosphine rejections climb
    Care required as low-level phosphine rejections climb
    Author: Chris Warrick, Primary Business, GRDC Grain Storage Extension Project coordinator, 2022-08-04T09:00:00+10:00

    Recent reports indicate an increasing number of trucks being rejected at delivery for excess phosphine. Attempted fumigations just prior to, or even during, transport are thought to be the leading cause of the high phosphine readings at delivery sites.

  • Getting the most out of ground-level fumigation
    Getting the most out of ground-level fumigation
    Author: Chris Warrick, 2022-02-15T09:00:00+11:00

    Phosphine fumigation can now be completed using ground-level application systems, which are much safer for the user, but only if the appropriate safety precautions are taken. These include recirculation, space for liberation, condensation trap and safety systems for power outage.

  • When to open sealed silos
    When to open sealed silos
    Author: Ben White, Chris Warrick, 2022-02-06T09:00:00+11:00

    Sealing a silo for long periods increases risks of grain degradation and silo damage. Silo seals are only designed to keep fumigant in the silo during fumigation. So, what should be done with gas-tight sealable silos when they are not under fumigation?

  • Sulfuryl fluoride can break phosphine resistance
    Sulfuryl fluoride can break phosphine resistance
    Author: Chris Warrick, 2022-02-03T09:00:00+11:00

    Rotating phosphine fumigation with sulfuryl fluoride is a valuable way to reduce the potential for development of phosphine resistance in grain storage insect pests, despite the need to hire a licenced fumigator.

  • Top tips for grain storage success
    Top tips for grain storage success
    Author: Ben White and Chris Warrick, 2021-12-12T09:00:00+11:00

    GRDC’s grain storage extension team share images of their favourite storage facilities; highlighting features, ideas and innovations to help inspire other growers who are investing in grain storage infrastructure.

  • To seal or not to seal
    To seal or not to seal
    Author: Chris Warrick, GRDC Grain Storage Extension Project, 2021-03-15T09:00:00+11:00

    The aim and sole purpose of sealable silos is to ensure that successful fumigations to control insects. There is no other purpose or time a silo should be sealed.

back to top