Contacts & Sources
For questions and advice about hemlocks, the woolly adelgid and how to recognize it, treatment options, instructions for treating your trees, or other related concerns, please call the Hemlock Help Line 706-429-8010.
Property owner associations and other organizations may
also call the Hemlock Help Line 706-429-8010 to set up a group presentation, planning
for your hemlock preservation project, or special training for treating your trees.
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Recommended Products -- For lightly to moderately infested hemlocks, Imidacloprid 75% WSP or 22.6% 2F (sold under various brand names) is the recommended treatment. For heavily infested or very large infested hemlocks, a different product containing Dinotefuran (sold as Safari 20 SG or Transtect 70WSP) is recommended. In addition to these primary products, there are other consumer products that do-it-yourselfers may consider. Click below for:
Retail Sources for Property Owners -- HWA treatment products are available from many sources, including the Internet. Below is a partial list of local retailers that carry them; this alphabetical list is meant for information purposes only, not as a company endorsement. The GA Forestry Commissionís web site also has a list of insecticide vendors. If you know of other retailers that should be added to the list, please let us know.
We suggest you call ahead to be sure the product you want is in stock. And if you will need a substantial quantity of treatment product, it's a good idea to call more than one supplier to compare products, prices, and any available volume discounts before making your choice. If you need advice or have questions on the most appropriate treatment product to use for special circumstances, the quantity needed, product characteristics, etc., please call the Hemlock Help Line 706-429-8010.
I = Imidacloprid products, D = Dinotefuran (Safari 20 SG)
Special Notes to Property Owners -- Merit 75% WSP is Bayer's original Imidacloprid product for treating HWA. However, there are quite a few generic formulations in liquid or powdered form that are chemically equivalent, equally effective, and much less expensive. When you call to order Imidacloprid, specify that you want a "generic Imidacloprid product for treating hemlock woolly adelgids." Then the store will be able to tell you the appropriate product to buy.
Please be aware that most 2.25 oz. packaging of Imidacloprid 75WSP is labeled for termite treatment, and using it would be "off label." However, there is one 2.25 oz. product (Equil Adonis) that is labeled for adelgids; see the Chemical Controls page.
Safari 20 SG is a water-soluble granule and is packaged in either a 12-ounce or 3-pound container. It comes with a specially marked measuring cup to use for measuring the product. Transtect 70 WSP is a water-soluble powder and is packed in a canister containing twenty 0.6-ounce packets, but it's difficult to find in the southeast.
Wholesale Sources for Professionals and Retailers -- We want to encourage as many retailers as possible to carry HWA treatment products in the hope that if property owners can find them locally, they will save more hemlocks. Therefore, to make it easier for retailers to find wholesalers that sell the appropriate products, we've developed a partial list of insecticide wholesalers for the Georgia market. This alphabetical list is meant for information purposes only, not as a company endorsement. If you know of other wholesalers that should be added to the list, please let us know.
Borrowing -- Once you have acquired the necessary treatment product, you may call one of the locations listed below and request to borrow a soil injector. In addition, quite a few neighborhood associations (not listed here) have purchased injectors for lending to residents. There is no fee for borrowing from any of the locations listed below, but a refundable deposit may be required. Please refer to the Georgia Forestry Commission's Soil Injector Loan Program for their rules for borrowing; in addition, neighborhood associations may have their own requirements.
Purchasing -- The Kioritz soil injector is no longer being manufactured. So if you have one or use one, please take good care of it. See Maintaining a Kioritz Soil Injector.
We have learned of a soil injection device that is being marketed as a replacement for the Kioritz. The 1-Two Root Injector from Nu-Arbor consists of a 4-gallon back-pack tank connected by a hose to a calibrated metal injection probe, available for $495 from the following companies:
If you know of other devices that are appropriate for soil injection or know of any Kioritz soil injectors that are no longer being used (even if they're broken), please call the Hemlock Help Line 706-429-8010. We have located a highly skilled engineer who may be able to repair malfunctioning injectors, depending on availability of parts.
Other equipment such as back-pack or sled-style sprayers may be found at retailers such as Home Depot, Lowe's, John Deere Landscapes, Tractor Supply, or your local farm co-op or hardware store. All product and source names mentioned above are meant for informational purposes only, not as product or company endorsements.
Qualified Professionals Specializing in Hemlocks
If you want to contract with a professional to treat your hemlocks, here are the qualifications that we recommend you should look for:
n License -- has a current contractor's pesticide applicator license issued by the State of Georgia in the appropriate categories (Forest Pest Control and/or Ornamental and Turf Pest Control);
n Insurance -- has at least the minimum liability insurance required by the State of Georgia;
n Expertise -- specializes in treating hemlocks and offers application methods other than trunk injection;
n Availability -- covers the part of north Georgia where your property is located; and
n Pricing -- provides services at reasonable rates.
Here are some local companies that we know meet the above qualifications. These and other licensed HWA Pesticide Applicators are also listed on the Georgia Forestry Commission's web site. We suggest that you call more than one company to compare services and prices before making your choice.
Hemlocks are wonderful in a landscape or woodland setting and can enhance the beauty and value of your property. They can be used as Christmas trees and then planted outdoors, make thoughtful gifts to commemorate special events, and offer valuable lessons in nature and stewardship for the children in your life. Each hemlock that is adopted, planted, and cared for is important to the preservation of the species. And if you adopt hemlocks through Save Georgia's Hemlocks, you'll also be supporting our efforts to help more property owners save their hemlocks, plus all or part of your donation will be tax-deductible.
Below is a partial list of sources that may have hemlocks. It is meant for information purposes only, not as a company endorsement. If you know of other good sources of clean healthy hemlocks, please let us know.
As part of our educational and charitable service initiatives, we also give away hemlock seedlings to schools, churches, and other nonprofit organizations. We are particularly interested in finding groups willing to undertake hemlock growing projects and will supply the starter seedlings and training free of charge. Please call the Hemlock Help Line 706-429-8010 for more information.
Save Georgia's Hemlocks has no business connections with any of the chemical vendors, equipment dealers, professional pesticide applicators, or tree sources listed or linked above, except:
One of the professional pesticide applicators listed above and on the GA Forestry Commission's web site, Mark Shearer dba Hemlock Doctor, is a relative of a Save Georgia's Hemlocks Leadership Team member. He operates his business completely separately from the SGH Hemlock Help Program; there is no information sharing and no financial benefit involved.
© Save Georgia's Hemlocks
2009. Last updated