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Cedar Leaf Minor

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A-Star Arborist

A-Star Arborist

Date Joined:
Jun 17, 2010

Posts:
166

Posted: Sun Mar 20, 2011 09:36 PM

Subject: Cedar Leaf Minor

Are your cedar hedges looking sick? Are the tips of some areas greyish brown? Are there lots of whitish moths flying around? If so you most likely have ceday leaf minor.

A-Star Arborist

A-Star Arborist

Date Joined:
Jun 17, 2010

Posts:
166

Posted: 2011-03-21 21:25:45

The best way to eliminate cedar leaf minor without chemicals is to prune or trim your cedars in the early spring while ther larva is still in the tips of the cedar. By burning or removing the clippings in a safe manner ( To prevent spreading) you dont allow the bug to grow into its adult stages, allowing it to reproduce and multiply. This normally wont kill your cedars but really make the plant look sick. By Fertilizing your hedges and keeping their roots happy and moist, you can build an internal defence against the bugs. If the area infected is to large to trim appropiately, they can be sprayed with Malithion which can be purchase from local garden centres. This only attacks the adults which fly in and around the cedars. I will take a picture in June when they are visable. This product is effective but can burn the tips of the plant material. There are systemic products that can be sprayed before the bugs hatch, which penetrate through the leaf structure but needs to be applied by a certified pesticide proffesional. There are only a few people that have the licences for this. It is always better to have an organic approach than chemicals, however sometimes this is the best solution.

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