Monterey Once A Year Insect Control II is an imidacloprid insecticide for control of leaf hoppers, mealy bugs, scale, whitefly, borers (including Emerald Ash Borer), and many other pests in ornamental trees, shrubs, and certain fruit and nut trees. Once A Year Insect Control II is used as a soil drench treatment that controls target pests for a whole season.
Do not apply near lakes, streams, rivers, or ponds. Do not apply to soils which are water-logged or saturated. Bucket or measuring utensils should not be used for any food or drinking water purposes after use with this insecticide.
For use on outdoor trees and shrubs, including listed fruit and nut trees:
DO NOT apply this insecticide, by any application method, to linden, basswood or other Tilia species.
I was recommended to this product by Pro-cure Nursery. It was the end of May and I was told, that to be effective it should be applied in March, before sap was rising, to be effective. I went ahead and applied to 5 mature pecan trees. In mid June the worms hit heavy. I watered heavy with my springlers and could the see leaves green up and grow darker. Leaving me to believe I was pulling the sap to all of the tree. The worms were very active for about 3 weeks, Since July ! I have not found a single live worm. They have completely dried up. (They look like sand burrs in a wad) I will for sure treat all trees in March nest year
It was easy to mix and use. Not sure how the end results will pan out because it is a systemic application and it takes time for the plants to take in the product and the insects to die. I'm hopeful that it will work and I will continue to purchase this
Monterey Once a Year with Imidacloprid is a tree saver!
By Kathy on 07/23/2019
Our apple trees have hundreds of holes in the bark. Looking up the problem on the internet, I suspected flat head and round head borers. Using the description, I pulled away the bark & found both kinds of borers and lots of frass. Not many products will kill these borers and still allow the fruit and nuts to be eaten. I have been using this product for 5 years and now buy it by the gallon because of all the different trees it can be used on.
It didn't work on my Problem !!! BUT I was using it on Dipladenia & Mandevilla and the Mealy bug were well ahead of me. I had used Lady bugs. They got the Aphids but maybe I waited too Long to use the Juice. I used half a bottle in 2 gallons of Mix on 6 POTS.
Is it safe to eat fruit after applied with Monterey Once A Year Insect Control II?
After using the drench early in the spring, is the fruit safe to eat? Can it also be used on pears and grapes?
This product can be used one the following fruit/nut trees only: Apple, Loquat, Oriental Pear, Pecan, Crabapple, Mayhaw, Pear, Quince. Fruits from these treated trees are safe. The product cannot be used on any fruits other than the ones listed above.
What is the mix ratio for Monterey Once A Year Insect Control II?
Monterey Once A Year Insect Control II is mixed for at 1 oz. per inch of distance around trunk for trees and at 3 oz. per foot of height for shrubs. The product is to be mixed with water and applied as a soil drench.