Page 14 - Griffin Gazette Spring 2016

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Pests in Gerbera

By Tami Van Gaal, Several bioinsecticides have shown good efficacy against
GGSPro Technical Support Representative thrips. Grandevo PTO is an OMRI-listed bacterial product
that is slow to act, but effective when applied weekly.
Thrips Control with Soft Chemistry Make at least three applications at 7-day intervals.
Thrips can be controlled with use of soft chemistries Preferal uses a naturally occurring fungus as its active
when the program relies on a few key strategies: ingredient. This OMRI-listed product should also be
applied at first sign of thrips either as a spray or a drench.
1. Scouting must be a focus and proactive in nature. Preferal is best applied using a TeeJet nozzle and when
Change sticky cards weekly and record pest counts. relative humidity will be at 80% or higher for 8-10 hours.
Perform beat tests and identify specific crops and Met 52 is also effective against thrips when used as a
locations that should be monitored more closely as spray or a drench.
early indicators of thrips presence.

2. Begin spray applications at first sign of thrips presence.

3. Focus on effective products and use them appropriately.

14 Griffin Gazette Spring 2016