Tuesday, March 31, 2015

Home News Check garden mums for insect pests

Check garden mums for insect pests

Pests & Diseases

Aphids, thrips and adult leaf tiers have been reported in Michigan

David Kuack | July 18, 2011

Jeanne Himmelein of Mich. St. Univ. Extension reports that insects that normally infest garden mums are now present. She said both aphids and thrips are easier to manage when the plant canopy is not fully developed, allowing for better spray coverage. Most of the insecticides being applied in greenhouses are either systemic, translaminar or contact.
Scouting for thrips is done by using both visual inspection and yellow or blue sticky cards. Thrips populations have been reported to be high on mums without flowers. When thrips enter the mum flowers, control can be difficult due to the inability to get the insecticide to penetrate the flowers where the thrips like to hide.
Himmelein said if adult greenhouse leaf tiers are flying around the area, then the larvae must be present. Make sure to scout deep in the canopy of the mums. Last year, damage from the larvae went unnoticed, resulting in unmarketable plants.

Top news

Prevent and protect

Selecting the right equipment is a time-consuming and crucially important process. Maybe more important? Keeping that equipment efficient.

DNA Green Group and Rijnplant finalize acquisition

Breeding and propagation of pot and cut anthurium, bougainvillea and heliconia will transfer to DNA Green Group.

Putting plants on hold before shipping

Cold or rainy weather can delay shipping of crops. MSU Extension provides a strategy for putting crops on hold.

America in Bloom announces participants in 2015 national awards program

Judges will visit 42 communities and evaluate their landscape and garden beautification efforts.

More evidence green spaces are good for you

Subjects in a University of Pennsylvania study had slower heart rates when walking by a planted lot.

x