Why is my homemade fruit fly trap in my mandarin tree not working?
My fruit fly trap consists of Vegemite in water. There are dozens of live maggots wriggling round on top of the liquid. Will they die there or do I need to kill them, do I need to renew the liquid mixture, would they be fruit fly wrigglers or ordinary fly maggots? They look thinner than house-fly maggots. Not sure where to go from here.
We would suggest that you dispose of the maggots that are wriggling in the liquid inside the trap. You will need to refresh the liquid. You should do this on a weekly basis. Traps are a good indicator to let you know you have fruit fly present in your garden. To give you plants full protection we would suggest you apply Yates Nature's Way Fruit Fly Control to your crops. This product contains Spinosad an insecticide derived from naturally occurring beneficial soil bacteria which kills fruit flies and a protein and sugar based bait which fruit flies can detect from several metres away. Start applying this product as soon as fruit fly are detected and spray every 7 days up until you pick the fruit. There is no withholding period for this product. You simply need to wash the fruit before consuming it. Do hope you are able to keep this pest under control and you are able to harvest all your crops free of this pest.
Answered: 29 Nov, 2018