That means, apply one insecticide two to three times over 14 to 15 days. The first insecticide application kills winged adults while the second and third kills newly emerged wingless individuals. Then switch to a different class of insecticide. Rotate insecticides between chemical classes every 3-4 weeks to discourage the development of pesticide resistance in the thrips population. Do not use tank mixes of different materials since this tends to foster the development of insecticide resistance in thrips.
Thorough coverage is required.
Alternate between fogging and spraying methods of application to achieve good coverage. Be certain the insecticide is registered for use in the greenhouse and that the names of the plants to be treated are on the chemical label. The following materials have been used to control thrips. However, agitated thrips may move from plant to plant more than normal and could, theoretically, lead to greater spread of the virus if not killed quickly. Maintain strict thrips control on all plants kept in the greenhouse.