When caring for houseplants indoors or out, it’s essential to regularly inspect their soil for spider eggs. Though easily missed, spider eggs encased in silk can quickly turn into spider mites which cause considerable harm. While spider eggs in plant soil isn’t an everyday occurrence, when they do show up there are steps you can take to prevent further problems from developing.
While spiders may be annoying, they don’t pose much of a threat to plants themselves; in fact, they play an integral part in controlling populations of damaging insects such as gnats and thrips. Unfortunately, gardeners and growers who cultivate houseplants indoors or in greenhouses could face serious spider problems since spiders lay their eggs in soil where there is plenty of warmth, inactivity, nutrients and warmth for their offspring to flourish.
To prevent spider eggs from forming in your soil, allow it to dry out between watering sessions. This will deprive their eggs of necessary hydration and they should die within several days; however, this method is unsuitable for plants like succulents or pothos that require higher soil moisture levels.
Another solution is applying natural insecticides directly to the soil. Neem oil-containing insecticidal soaps provide an effective means of killing spider eggs in plant soil; simply pour a solution onto infested areas to kill any eggs or nymphs before rinsing the area with clean water afterwards.
Alternately, systemic pesticides that penetrate through the roots of plants containing imidacloprid may help. Their active ingredient will be taken up by plants as sustenance for themselves – eliminating spider mites and their eggs with each ingestion by them.
Finally, predatory insects such as ladybugs, lacewings and nematodes can help control spider eggs and other unwanted pests in the soil. Consider releasing them regularly into your greenhouse or garden every spring and summer in order to keep the population of damaging insects under control.
A simple way to detect spider eggs in plant soil is to shine a bright light over it and look for webbing, or any small mounds near plants where egg sacs have been hidden. Additionally, natural spider-egg enemies like nematodes or predatory mites may help search out and destroy spider eggs before they hatch; regular observation with magnifying glasses will enable early detection so you can enjoy a flourishing garden without dealing with spider eggs in plant soil.