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Location

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Algoma, Wisconsin

I have sprayed merit at a ratio of 1/4 teaspoon per 1.25 gallons but I for some reason I have all the bores in the Midwest it seems. I also have watered merit in at a rate of 2 tsp per 40 gallons water and still I find places were the borers have chewed on the plant. How long does it take for them to die should I increase amount of merit used when watered in if so how much? FYI I spray every 7 days and water Erin in every 10 days

7/30/2019 8:00:08 AM

Central Illinois

I add 3 tsp to 5 gallons of water and pour a doughnut shape circle around the stump .I leave the center 2 feet dry and drench an area about 14 feet wide

7/30/2019 8:08:43 AM

Bethlehem CT

You will have to let us know specifically which merit you are using, what % is it? I am sure you will get a reply.

7/30/2019 8:08:49 AM

Central Illinois

I forgot about the other products
I am using 75% powder

7/30/2019 8:11:05 AM

Algoma, Wisconsin

I’m using merit 75 wp

7/30/2019 8:14:24 AM

Algoma, Wisconsin

I’m using merit 75 wp

7/30/2019 8:14:27 AM

Boscawen, NH

You should not be thinking in terms of amount per gallon. Instead you should be doing amount per sq. feet or acre. The rate for the 75% is 3-4 level teaspoons per 1000 sq. ft. Once applied to all areas of the root zone be sure to water it in thoroughly for the next few days.

7/30/2019 11:19:43 AM

Lewistown,IL

I use Adonis wp75 at a rate of 4tsp in 5 gallons. twice a month.

7/30/2019 11:20:12 AM

Central Illinois

The directions do say 4 tsp for 1000sqft, but that is to kill soil grubs over a 1000sqft area.I used 4 tsp in 5 gallons for a few years then went down to 3tsp, I think 2 or even 1 tsp MAY work if used regularly

7/31/2019 8:21:25 AM

New Berlin, PA

All rates are calculated per acre first. Then I'll divide by 43.56 for the rate per 1000 sqaure feet.

It is best to apply Imidacloprid a week or two prior to planting out in at least 2 gallons of water per 1000 square feet then water it in slowly without puddling. This will control Cucumber Beetles, SVB, & Aphids for about 90 days.

Then repeat the same drench application also watering in at 75 days to cover the rest of the season.

First the Flowable liquid formulations:

Bayer Tree & Shrub*........1.47% Imidacloprid 233-350oz/acre
Bayer Merit 2F*...........21.40% Imidacloprid 16-24oz/acre
Bayer Admire 2F...........21.40% Imidacloprid 16-24oz/acre
Bayer Provado 1.6F*.......17.40% Imidacloprid 20-30oz/acre

Now the various Wettable Powder formulations:

Merit 75WP*...............75.00% Imidacloprid 6.4-8.6 oz/acre
Merit 75WSP*..............75.00% Imidacloprid 6.4-8.6 oz/acre
Provado Solupak*..........75.00% Imidacloprid 6.4-8.6 oz/acre

So........

Bayer T&S.....................5.35-8 oz per 1000 square feet
Merit 2F...................10.3-15.4 ml per 1000 square feet
Admire 2F..................10.3-15.4 ml per 1000 square feet
Provado 1.6F...............12.8-19.3 ml per 1000 square feet
Merit 75WP & 75WSP..3-4 level teaspoons per 1000 square feet
Provado Solupak.....3-4 level teaspoons per 1000 square feet

8/2/2019 8:08:18 AM

New Berlin, PA

Copied from an old post I've saved because it is so useful

8/2/2019 8:09:02 AM

stoughton WI

Matt, how are you spraying. Sounds like your not getting good enough coverage. I use 1 teaspoon per gal.

8/2/2019 1:31:12 PM

Mill Bay, British Columbia

Thanks Dan, great info & details.

8/3/2019 1:26:03 AM

JACKSON, WISCONSIN. ; )

Read the packaging

8/7/2019 10:19:59 PM

Partlow,Va

I have used as much as 3 tsp/ gallon foliar Merit75wsp and had no ill effects on my plants.

8/11/2019 10:19:38 AM