Since Merit Insecticide Granules is a systemic insecticide that translocates through the plant, it is best applied before Spring/Summer egg hatch, before we see adults and/or damage from the target pest, in this case before we see adult mole crickets. The granules do need to be activated with irrigation or rainfall of about 0.5 inches. For the most exact recommendation as to when to apply the product, we recommend contacting your local Cooperative Extension office.
Merit Insecticide Granules is not labeled for aphids and it would be recommended to use the liquid Merit 2F instead if you are, in fact, dealing with aphids or other plant-sucking insects.
Merit Insecticide Granules should be appled just before or after egg hatch and will not actually kill the eggs, only the young that feed on the roots. The best time will vary depending on the region you are in. You should contact local cooperative extension office to determine the best timing for grubs in your region.
Merit Insecticide Granules are labeled to be used on landscape plants, flowering plants, ornamentals, shrubs, etc therefore would not harm the impatiens if applied according to the instructions on the product label.
Everyone other than the person applying Merit Insecticide Granules should stay out of the area while it is being applied and watered in. Once everything is dry, it is safe to resume normal activity in the area.
Merit 0.5 G is only labeled for a few species of beetles typically found in turfgrass. It is not labeled for application to pine trees. We would suggest contacting your local extension office to get a positive ID on what species of beetle you are dealing with and then we can better advise you on what product to use.
The inert ingredients in the Merit 0.5 G Insecticide Granules are proprietary to the manufacturer. They don’t provide that information to anyone outside of their company.
It would be best to apply something again in the spring before the insects are active rather than now in the fall when they are less so. Merit 0.5 G Insecticide Granules is still a great option to use.
There is not really a product on the market listed for miner bees as they are seen as beneficial and Merit 0.5 G Insecticide Granules is not labeled for them. You can try to apply a residual product such as Talstar P broadcast sprayed over the lawn, but there is no guarantee that it will stop these bees.
The application timing for Merit 0.5 G Insecticide Granules will depend on the insects you are targeting but typically most effective when applied prior to, or just after, egg lay. Please review the product label for more information on the target pest for your application.
In most cases, adult emergence occurs in early summer, often after significant rainfall or irrigation, followed by mating and egg laying. This usually continues for four to six weeks and under normal circumstances, Merit 0.5G Granules will provide residual white grub control for 4 months or longer in the soil. This product should be applied with a drop-type and rotary-type spreader.
Timing for applications of Merit 0.5 G Insecticide Granules will depend on the target pest being treated.
We recommend contacting your Local Cooperative Extension Office for advice on the best time to apply insecticides for pests in your region as they are a great resource when dealing with pests and most have a master gardener and an entomologist on staff to answer questions.
Merit 0.5 G Insecticide Granules will last in the soil anywhere from about 30 - 90 days depending on the rate used and how much rainfall you receive. If you have very sandy soil and get a lot of rainfall, then we recommend applying at a lower rate more often rather than applying the highest rate at one time.
For Grubs, Merit 0.5 G Insecticide Granules are applied once a year at the max rate of 1.8lbs per 1000 sq ft or 80lbs per acre per year. A second application is not advised as you are applying at the maximum rate already.
Merit Granules are most effective when applied prior to, or just after, grub eggs hatch. It is important that the application be followed by sufficient irrigation or rainfall to move the active ingredient through the thatch layer. If the granules cannot penetrate the soil adequately, the grubs will not be affected.
Japanese Beetles (adults) emerge in early summer after significant rainfall or irrigation, mate and then lay their eggs about 4 to 6 weeks later. Timing for prevention treatment of grubs in late June to mid July are usually ideal as this is just before or right at when grub eggs are hattching. Under normal circumstances, Merit 0.5 Granules will provide about 4 months of residual control.
For actively feeding grubs now, it would be recommended to use Dylox 6.2 Granules as this kills actively feeding grubs for 48 hours. View the full Dylox 6.2 product label for more information as well as our Grub Treatment Guide for additonal infromation and tips.
No, Merit 0.5 G Insecticide Granules are not labeled for adelgids in Hemlock trees. Dominion 2L is labeled for adelgids and will be able to help with hemlock wooly adelgid infestations. Because hemlocks are shallow rooted, a soil drench with Dominion can be effective. Whatever method is being used to make a soil drench, whether using power equipment, a bucket or watering can, it is important to make sure the application is evenly distributed and does not run off. Soil treatments should be made when the soil is moist. Fall to early winter and spring to early summer are recommended periods for making soil applications for the HWA. It can take 2-3 months for imidacloprid products to be translocated through trees that are about 15 inches in diameter. This process may be faster or slower, depending upon the size and health of the hemlock and other environmental conditions during and after the application. It is advisable to make soil applications of imidacloprid products to hemlocks before they become heavily infested and stressed by the HWA— to ensure good translocation through the tree.
