Australian plague locusts are building in intensity along the tristate border region Queensland, New South Wales and South Australia, helped by good summer rainfall.
The nymphs are emerging hungry and ready to eat fresh grass and crops.
Locusts north of Broken Hill and around Birdsville would have another hatching, which would pose a threat to sowing autumn cereal crops.
The major issue is going to be north west NSW and further into north east South Australia and further south if there’s another generation that moves into that area.That’s where the drama will occur in the autumn generation.
At Birdsville, a trap caught 200 adults overnight.
“That’s an indication there’s a population there and with the summer rainfall that population is likely to breed another generation.
North of Broken Hill, the light trap at Fowlers Gap caught up to 1000 adult locusts one night between Christmas Day and New Year’s Day.
The adults are not the major issue, it’s really the eggs that are laid and the nymphs as they emerge from the ground.
That’s the danger to emerging cereal crops.