Yes, Demon WP can be used on house plants.
When treating for roaches, we recommend using a bait, a liquid insecticide and an insect growth regulator (IGR). You are able to treat with all 3 of these products at the same time, just not on top of each other. For instance, our Roach Control Kit # 2 has all 3.
The Demon WP is for crack and crevice treatment around baseboards. Dilute 1 packet per gallon of water in a pump sprayer and apply in cracks and crevices where pests are seen, may harbor, or may enter the structure (corners, baseboards, and under and behind appliances) Do not spray on top of baits where bait will be used.
Demon WP is not labeled to kill snakes. For snake control products, please click the link below.
http://www.domyownpestcontrol.com/snakes-c-179.html
You should try not to mix more than you need of Demon WP Insecticide, but in the event that you do, you will pour any unused portion of solution right up against the foundation of the structure you are treating.
You are able to apply Demon WP any time of year when you see activity or as a preventative treatment as long as the temperature is not at or below freezing when you are treating. Lady bugs are not specifically listed on the label, but Demon WP does treat for very common insects around the structure including spiders, cockroaches, boxelder bugs, fleas, and ants.
Demon WP Insecticide will create a barrier of treatment around and inside your home to treat and prevent Palmetto Bugs. Be sure to spray eaves, soffits, window frames, door frames, areas where cables, pipes or wires enter into the structure and any other crack, crevice or gap where insects can harbor.
The label states to apply Demon WP Insecticide in calm weather when rain is not predicted for the next 24 hours will help to ensure that wind or rain does not blow or wash pesticide off the treatment area.
Demon WP Insecticide can kill bees, including honey bees. We do carry Mavrik Perimeter which is non- toxic to bees after it has dried.
Demon WP Insecticide has a slight aromatic scent that will dissipate as the surfaces dry and the area is properly ventilated. Please be sure to mix 1-2 packs per gallon of water per 1,000 sq ft and apply quarterly to the interior crevices/monthly to listed exterior areas.
When applying Demon WP Insecticide indoors, it is labeled for indoor cracks and crevices including the baseboards, behind the refrigerator, etc. We do NOT recommend applying this product to the countertops or food prep surface areas. If during treatment you feel this product may have gotten on the countertop, you can use soap and water to remove the product.