Leaf miners are moths that lay eggs on the undersides of tomato leaves. The eggs hatch into caterpillars and burrow through the leaf tissue to mine out the nutrients. The insects cause minor damage to the leaves, but where you can control the insect is at the egg stage. Systemic insecticides for leaf miners work by killing off the caterpillars in either their pupae stage or when they hatch as tiny larvae. One of the best systemic pesticides for tomato leaf miner is called Thiodan . It is available in liquid concentrate and as a spray for garden use. Systemic insecticides are usually the best leaf miner chemical control because they go directly into the plant and protect the roots, stems, leaves, flowers and fruits. Systemics have a slow mode of action and can be used as both an area treatment or as a foliar application. They are available in different active ingredients such as Bacillus thuringiensis (BT), spirotetramat and avermectin B1a. Since its introduction in the 1960s, systemic insecticides for leafminer control have helped protect homeowners and professional landscapers from this destructive pest. Systemic insecticides are ingested by leafminers and transmitted throughout their body. They are not repellant (like most adulticides) and do not kill leafminers when they contact the insecticide’s residue; they kill only when they consume it while feeding. Systemic insecticides are typically used during spring or early summer, when there is no threat of frost, to prevent leafminer infestations in plants that have not yet reached flowering stage. Once the plant has flowered, there is little risk of damage to the bloom; however, systemic treatments are still effective at limiting the spread of leaf miners on flowers.

Systemic Insecticide For Leaf Miners

What are leaf miners?

Leaf miners are the larva of small insects that tunnel between the upper and lower leaf surfaces. They can be found on a variety of vegetables, fruits and ornamental plants. Leaf miner damage is characterized by raw or rolled areas along veins, which often become yellowed with time. Leaves may also be spotted or riddled with holes that resemble shot holes from water stress.

Control of leaf miners

Leaf miners are small, white insects that can be found feeding on the undersides of leaves.

They are most common in spring, but they can also appear in the fall. This insect is small enough to fit through the seam between two leaves or petals and lay its eggs there. Eggs hatch into larvae which burrow through the leaf tissue while they feed on plant tissue under the surface of the leaf. As they eat, they create tunnels that cause damage to leaves and disrupts photosynthesis (which can lead to plant death if left untreated). The maggots drop off once fully grown, leaving small black spots where their bodies were buried in your garden plants.

Systemic Insecticide

A systemic insecticide is a good control of the leaf miner. A systemic insecticide is only available to commercial growers and it is applied through the leaves.

The systemic insecticide is a good control of the leaf miner.

Systemic insecticides are good control of the leaf miner. They can kill the leaf miner because they are systemic. The systemic insecticide is a good control because it can kill the leaf miner and it is systemic, and therefore also good.