Before ARS was eliminated from Alaska, they conducted a thorough survey of the peony fields at the Georgeson Botanical Garden for thrips. Thanks to the efforts of Div. of Ag, Curtis Knight and Dr. Derek Syles, UAF Museum, they have now been identified. We don’t have one type of thrips, we have nine species! The most common is western garden thrips, onion thrips and tobacco thrips, all of which cause significant damage to vegetable crops and will definitely be an issue with peonies. At the GBG this summer, thrips damage is extensive, the most I have ever seen. Perhaps it is because of the hot, dry weather. I am cataloging all the damage I have seen and will share at a later date. Thrips are extremely difficult to identify. These specimens were sent to Spain for verification! It is clear we need a statewide survey and then information on how to minimize damage and control infestations.
Posted by: HortAlaska | July 5, 2013
Thrips- a short note
Posted in Insects