I'm looking for an inexpensive, environmentally safe way to get rid of the Hemlock Woolly Adelgid Aphid. Hopefully it will be easy to apply and with no toxic residue. Maybe something organic?
Woolly adelgid aphids can be a major problem if left untreated. They will literally suck the life out your host plant and populations can explode in just one season. There are two ways to treat the problem and for the best long term results, we feel a combination of both will achieve the best results overall.
Organic remedies that work well for woolly adelgids include MULTI PURPOSE INSECT KILLER and BUG PATROL RTS. The Multi Purpose can be sprayed over garden plants safely so it's ideal if you are an organic gardener and need to treat vegetables, fruits or some other crop meant to eat. The Bug Patrol comes in a container that is simple to use; just hook it up to your garden hose and you're ready to go. Since it's using the water (and water pressure) from your garden hose you can generally reach quite high with this option making it ideal for treating tall trees. The only drawback to the organic sprays is they won't last forever and in general you'll have to spray more frequently to achieve success. This is especially true when dealing with a bad infestation.
For longer lasting control, go with the BIFEN and SPREADER STICKER mentioned in our APHID CONTROL ARTICLE. Treatments with this mix will last 3-6 weeks and in general you'll see better, longer lasting results.
For the ultimate in control, start applying some MERIT WP once a year. It's a systemic meaning it will get into the host plant and when parasitic insects attempt to feed on it, they'll die. This option will yield the longest lasting results and over time will prove the easiest to do.
Here are direct links to the information and products mentioned above: