We are well aware of the dangers of pesticides, but those ready-made products, like premixed sprayers, might let us forget how hazardous these products can be! In this short post, we will discuss the dos and don’ts of pesticide application indoors.
How Do Pests Get Inside Our Homes?
Often, it’s a situation of hitchhikers on our own persons or our pets. Sometimes, they come in when we bring home a new plant from a friend or a store that is already infested. They can also enter when we bring in our exotics from outside to overwinter indoors.
Identify the Pest
The first step to successful pesticide application is to identify the pest or disease and monitor its severity. Indoor pests often have an explosive appearance since there are almost no natural predators around, and the conditions are often favorable in a closed environment. For more information, see HGIC 2252, Common Houseplant Insects and Related Pests and HGIC 2251, Common Houseplant Diseases and Disorders.
Mealybugs hiding on a new houseplant.
Photo credit: @nanihta- stock.adobe.com
Choose the Right Pesticide
Once we have identified the species, we can choose an appropriate pesticide. Always start with the least harmful product. This could be an insecticidal soap or a neem oil spray. Rubbing alcohol on a Q-tip works well, too, by drying out the pests. For a fungal disease, a copper fungicide is a less toxic option.
Different pesticides for different problems.
Photo credit: @PrettyVectors- stock.adobe.com
If the issue persists, we might consider a stronger agent. Personally, I prefer to move on to a systemic pesticide rather than a contact pesticide. The plant takes up a systemic pesticide and so becomes toxic to pests. There are many ready-made sprays on the market. However, we must be aware of how to use those ingredients appropriately.
Understanding Pesticide Labels and Safety Guidelines
Each label provides clear directions on how to use the product, how to dispose of it, and what to wear during application. These directions are not suggestions but the law! The labels only state the minimum requirements. It’s always a good practice to wear even more protective clothing or be more careful when disposing of the packaging, etc. For more information, see HGIC 2751, Pesticide Safety.
Mealybugs hiding on a new houseplant.
Photo credit: @nanihta- stock.adobe.com
Best Practices for Indoor Pesticide Application
It’s important to treat plants in a well-ventilated area, ideally outdoors. During the warmer months (March through September and above 50 °F), I prefer to move my plants to a shaded spot, thoroughly spray them down, and let them sit in the shade until they are completely dry before bringing them back inside. Be sure the area remains shaded while they’re outside to prevent sunburn. In the colder months, I take my plants into the garage or another less-used room for treatment. If you’re indoors, cover the floor with a plastic tarp to protect carpets from pesticide contamination. Afterward, thoroughly wash your hands and any exposed skin to avoid any residual pesticide contact. If you have children or pets, keep them away from the treated plants.
Follow-Up Care and Reapplication
Continue to check for pests and follow the pesticide label for any repeat applications if the infestation is still strong.
Emergency Procedures in Case of Poisoning
If you suspect pesticide poisoning, immediately contact your local poison control center. For South Carolina, call Palmetto Poison Control at (800-222-1222). In more serious cases, call 911.
