What do we spray to prevent the bugs

Every year our Laburnum tree gets tiny worms after it blooms. They eat the leaves and leave the tree looking awful

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1 Comment To "What do we spray to prevent the bugs"

#1 Comment By GKH_Susan On 04/30/2020 @ 2:21 am

Here is an extension publication that discusses caterpillars eating the leaves. It advises using applications of Bacillus thuringiensis (Bt) as soon as the larvae hatch.

http://ipm.ucanr.edu/PMG/GARDEN/PLANTS/INVERT/folfeedcater.html ^[1]

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[1] http://ipm.ucanr.edu/PMG/GARDEN/PLANTS/INVERT/folfeedcater.html: http://ipm.ucanr.edu/PMG/GARDEN/PLANTS/INVERT/folfeedcater.html

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