The basil plant is an herb that is typically grown for its use in cooking. With its small, fragrant leaves it is especially popular in Italian cooking, though it can be used in many other genres. Basil is not only considered to be quite tasty by humans, but is also enjoyed by a number of insects and other pests. By recognizing the bugs that are targeting your basil plants, you will be more able to protect them.
Common Pests
One of the most common pests that attack basil plants are aphids. Basil plant leaves that have been attacked by an aphid often appear discolored, decayed, and may eventually even fall off the plant. In contrast, slugs and Japanese beetles-which also attack this plant-prefer to eat its leaves, resulting in a chewed-upon appearance. Other insects which have been known to snack on basil plants include grasshoppers, cutworms, and even some types of ants.
Strengthening Basil Plants against Attack
While almost all basil plants are potentially at risk for attack by the pests mentioned above, those that are well cared for are more likely to fend off the attackers than those which are neglected. Specifically, basil plants that have appropriate amounts of water, sunlight, drainage, and are kept at the right temperature are usually strong enough to survive a pest attack. Basil plants do best when grown in areas with direct sunlight, good drainage, are provided with moderate amounts of water, and have moderate to high temperatures. In addition, basil plants should have relatively large amounts of space in which to grow, and should be well tended so that they do not have to compete against weeds or other basil plants for nutrients or water.
Pest Prevention and Treatment
If you are still concerned about the risk of pest attack, consider using an insecticidal soap. This is a product that is used to coat the leaves of the basil plant during some periods of the growing season. Other tools that can be used to treat and prevent pest damage include pest traps, which are often placed near the bottom of basil plants and which kill pests upon contact, or liquid seaweed and citrus oil, which are effective at eliminating large insects. Gardeners who use these methods should be sure to rinse the leaves of their basil plants carefully before consumption, to limit possible chemical consumption. Finally, individuals who have continued problems with basil plant pests may want to consult with a horticulturist. He or she may be able to make additional recommendations regarding the care and growth of your basil plants.