Russian wheat aphid reported at Kadina
RUSSIAN wheat aphid activity has been reported in Kadina, among several other towns throughout South Australia. Dr Maarten van Helden from the SA Research and Development Institute said treatment should only be considered if infestations were at...
RUSSIAN wheat aphid activity has been reported in Kadina, among several other towns throughout South Australia.
Dr Maarten van Helden from the SA Research and Development Institute said treatment should only be considered if infestations were at potentially damaging levels.
“Australian intervention threshold recommendations are currently based on overseas research, which recommends a spray application when more than 20 per cent of all seedlings are infested with aphids up to growth stage 30, and more than 10 per cent of tillers are infested with aphids from growth stage 30,” he said.
