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John Fulton

John Fulton
Former County Extension Director

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In The Backyard

Horticulture columns and tips done on a timely basis

Late Summer Reminders

Posted by John Fulton -

We are at a possible time to control Zimmerman Pine Moth. Zimmerman pine moth is one of those "kind of borers." It generally affects only severely weakened trees, and goes just under the bark to girdle the cambium layer at a branch whorl. It seems like older Scotch, red, and Austrian pines are favorites when they begin to decline. There are other problems which cause the sap to leak out, and they include diseases and birds. Frequently, the damage from a severe infection of the pine moth leads to the branch, or top, breaking off in a wind storm. Permethrin or bifenthrin would be options to attempt to control the pine moth, and it should be applied as a broadcast spray concentrating on the branch junctions and main trunk with a mid-August timing.

Keep up with spray programs for apples until shortly before harvest. This will help control the sooty mold which looks like charcoal dust on apples. It does scrub off, but notice I said scrub and not rub. Sooty mold is usually worse on the yellow type apples, or at least more noticeable.

Also, the population of spiders, crickets, and other home invaders has grown by leaps and bounds the past week or so. This means to keep up the foundation treatments to provide a protective barrier against these insects. Permethrin or bifenthrin insecticides are the most commonly used now.

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