6 Natural Ways to Get Rid of Leafminers Leafminers are seen as insects in their larval stage or in plain terms, larva. These insects in their larval stage, feast on the tissues of plants. Monitor your plants The only way you’ll be able to catch an infestation is by knowing your plants. At the slightest hint of burrowing in the leaves, pinch the area of burrowing with your fingers. Eradicating the larva will prevent further spreading and outbreaks. Encourage your plants to be healthy. Leafminers affect healthy and unhealthy plants, don’t get me wrong, but the healthier your plants are, the less vulnerable they are to succumbing. These covers actually prevent Leaf-mining insects from injecting your plants with Leafminers Natural enemies can be used to combat Leafminers. Parasitic wasps, namely Diglyphus begini and Chrysocharis parksi, can be introduced to your garden since they eat the Leafminer larvae. This natural insecticidal oil can be used for treating plants with Leafminers. This tool, though useful for Leafminers, is not necessarily sufficient for pest control.