Mar 17, 2013 - 10:59 PM
Unfortunately, even with using a very powerful outdoor insecticide, you can only expect very limited control of midges. BT would not do anything to them, and honestly, be a waste of time and money. Nematodes would not work at all. They would die within minutes unless there was adequate moisture and shade to protect them.
Many of our customers around Dallas area lakes suffer from this every year. The best thing to do is to keep the webs wiped down from the eaves and keep the areas clean. We have a product called EcoSafe Cobweb Cleanup that works well to help repel spiders and make the cleanup easier. Here is the link - http://www.epestsupply.com/product/EC...
Another alternative would be to use Demand CS and spray it around the perimeter and eaves. It is microencapsulated and virtually odor free. It applies at a really low rate, and may provide control. http://www.epestsupply.com/product/ZE...
I understand the concern over pesticides, but we don't really have or use many OP insecticides anymore. The old Dursban and Diazinon days are years behind us. The new chemistries is definitely safer, but they are still EPA registered and not considered "organic". Much safer in my opinion, and most have little if no odor.
In my honest opinion - Organics work in pest control only a fraction of the time. I have been researching and testing many so called "organic" and "natural" remedies for over 30 years, and can honestly tell you, that unless there is a specific product designed to kill a specific pest, and it is widely known to work on that pest, one can spend a lot of time, effort and money and wind up with zero results trying to conjure up a home remedy.
We sell quite a few natural products, but none would work for midges.
Hope this helps.