Q.Spraying plum tree
My Victoria plum tree is now beginning to blossom. Last year all the plums had moths in them even though I used a moth catching tent. Is now the right time to spray the tree? When do I apply the band around the bottom of the tree?
Alisma
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on March 27, 2017
If you have plum moths (Grapholita funebrana), beginning to spray in the third week of June is recommended. Or, you can use pheromone traps to determine timing more precisely:
https://www.rhs.org.uk/advice/profile?PID=554
The tree bands are recommended for different species of moths, and they should be applied in the fall:
https://www.rhs.org.uk/advice/profile?pid=518
If you're not sure of the moth species you have, contacting a local extension agent will help you find out what is common in your area.
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