Ortho Systemic Insect Killer

Ortho Systemic Insect Killer

Ortho Systemic Insect Killer is one of the strongest pest control products available for controlling thrips and gall midge.Thrips are the leading cause of hibiscus plants dropping buds before they bloom. Controlling thrips requires the use of two products in rotation, because if a single product is used continually, thrips will quickly develop resistance to it and it will no longer work. For this reason we recommend spraying two times with Green Light Spinosad and then one time with Ortho Systemic, each spraying 5-7 days apart. Repeat this sequence as often as you need to to control thrips and gall midge.

Ortho Systemic Insect Killer contains Orthene, the safest of the old fashioned pesticides (active ingredient acephate). It can be used by itself for excellent control of thrips and midge. However, because it affects many insects, it also kills off some of the good predatory insects that are helpful in preventing damaging insects from multiplying. We recommend using this product in a rotation with Green Light Spinosad. The Spinosad should be used twice, followed by one treatment with the Ortho. This product is a concentrate that is mixed with water and sprayed using your own sprayer.

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For more information about each specific hibiscus pest, or to diagnose your pest problem, go to our Hibiscus Pests Care Pages.

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