Liming and snails. We regularly receive reports of increased numbers of pest snails in paddocks after liming. This often raises questions about machinery moving snails or snail eggs with the lime. While this cannot be ruled out in some instances, it
Predicting next year's insect pests. Finding invertebrates such as snails, slugs, European earwigs, weevils and vegetable beetles during harvest can inform monitoring for next season. Resident pests can live in paddocks and build up high populations
Spring is here – so are cabbage aphids. There have been recent reports of cabbage aphids (Brevicoryne brassicae) in dense colonies on canola. Aphids often attack stressed plants, and after this year’s dryer winter weather conditions there are
Look out for beneficials in your crops. With a warm start to spring, beneficials have been active. There are several beneficial predators and parasitoid species that prey on crop pests, which can have a significant impact on pest populations. You
Common stored grain pests. The PestFacts team has recently received various samples of stored grain pests, including minute mould beetles. These reports highlight the importance of ongoing vigilance and effective pest management to ensure the
Summer management of snails. The most effective management of pest snails requires a year-round systems approach. In spring, growers should determine if snails will be a problem during harvest, then implement strategies to deliver clean grain and
Pea weevil monitoring and spraying. In response to recent warm weather, the SARDI pea weevil model predicts adult pea weevil (Bruchus pisorum) began their invasion of pea crops in most South Australian regions on the 25 August. Sweep-net monitor at
Reviewing the daily egg production method (DEPM) to improve confidence in estimating spawning biomass for Snapper.
Control next year's redlegged earth mite now. Redlegged earth mite (RLEM, Halotydeus destructor) is a common resident pest. RLEM are active from autumn to late spring and have up to 3 generations each year. The final or third generation produces over
Parasitic wasps and entomopathogenic fungi on aphids. Large colonies of aphids have been reported on canola at Tumby Bay, but luckily most of them have been attacked by parasitic wasps and entomopathogenic fungi (fungi that kill insects). Several