Demon WP Insecticide needs to be used within 24 hours of mixing with water. In the original envelope it has a 5 year shelf life if kept out of extreme temperatures and direct sunlight.
These products should not be mixed together. There is no valid reason to mix Demon WP/Cyper WP and Talstar P/Bifen IT together. Talstar P/Bifen IT is a synthetic pyrethroid and Demom WP/Cyper WP already contains a synthetic pyrethroid, so there would be nothing to gain by mixing these products together. Making a pesticide too strong can actually backfire. Areas that are treated with this overly concentrated spray will be repellent and insects will simply avoid the treated areas prolonging the infestation.
Once Demon WP has dried, it is safe for your pets to be in the area that was treated.
Repeat treatments with Demon WP Insecticide can be done as necessary, but not more than once every 7 days
It is always a good practice to alternate products with different active ingredients. A great alternative to Demon WP would be something like Suspend SC. Suspend SC is a general insecticide that is labeled for various pests, including roaches, mosquitoes, ticks, fleas, etc. This can be used indoors and outdoors around the perimeter of your home. We would recommend 30 days between applications of different products.
We normally would not recommend to use Demon WP Insecticide for carpenter ants. Although, it will kill the ants that contact it, it will not eliminate the colonies.
We generally recommend using Dominion 2L for carpenter ants in trees. This can be used directly on the tree or as a soil drench.
Also, please check out our Carpenter Ant Guide for tips on how to treat and prevent carpenter ants.
You would want to make sure the area you are treating with Demon WP Insecticide is clean and completely dry before applying the product.
Demon WP must be used or discarded within 24 hours of being mixed with water.
Each 0.3 oz packet of Demon WP is used in one gallon of water. Two 0.3 oz packets can be used in one gallon of water to eliminate harder to kill insects.
Demon WP actually is not labeled to treat for carpet beetles indoors, but it will help to combat a variety of other pests listed on the product label. A great IGR for carpet beetles would be Gentrol IGR. You can mix this concentrate with an insecticide and apply them at the same time. A great choice for insecticide to use with Gentrol as a crack and crevice treatment would be Suspend SC, which is a liquid concentrate. Be sure to vacuum thoroughly and often when treating for carpet beetles to help pick up adults, eggs, and debris that they may feed on such as animal dander.