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Showing posts from January, 2016

A Pictorial Ode to Insect Flight

Karl Foord - Extension Educator, Horticulture

This is a smorgasbord of insect flight.

Magnificent Monarchs - Karl Foord

Karl Foord -  Extension Educator, Horticulture

One of my goals as an extension educator and photographer is to enable people to see things that are beyond our human physical capacity of perception. I am particularly interested in insect flight, because of my work on pollinator awareness.


Don’t Wait to Prune out Cankers and Galls

M. Grabowski, UMN Extension Educator
A traditional recommendation in Minnesota is to prune trees in February and March. One goal of pruning during these months is to remove branches infected with cankers and galls. The fungi and bacteria that cause cankers and galls on trees overwinter in these infections. When weather becomes warm and wet many of these pathogens start to reproduce and spread the disease within the canopy and to neighboring trees.

Climate change is increasing Minnesota’s average temperature and adding days to Minnesota’s frost free season. Spring in Minnesota has been arriving earlier and is warmer. Weather data from the twin cities metro area over the previous five years reveals that in February an average of 7 days reached a maximum daily temperature over 32 F, and in March an average of 23 days reached a maximum daily temperature over 32 F.
There are several common canker and gall causing pathogen that can reproduce and infect at temperatures just above freezing,…

One Bad Apple

M.Grabowski, UMN Extension Educator

If you have stored garden produce from your own garden or the farmer's market be sure to regularly inspect this produce for problems. One bad apple spoils the barrel succinctly describes how post harvest rot organisms can start in one bad piece of fruit and grow to infect everything sharing the same storage bin. Fungi and bacteria can both cause rot of garden produce in storage. Some of these organisms are weak pathogens that infect the plant in the garden but do not cause damage until after harvest. Others, like common bread mold (Rhizopus sp.) and blue mold (Penicillium spp.) are saprophytes that can easily be found in soil or plant debris.

Post harvest rot organisms take advantage of wounds like small cuts, bruises, or chilling injury to infect plant tissue. To avoid problems with storage rot harvest fruits and vegetables when they are fully mature but not overripe. Take care not to bruise or damage the fruit during the harvest process and do…

Forest Pest First Detector workshops in 2016

Jeff Hahn, Extension Entomologist

Registration is now open for the 2016 Forest Pest First Detector workshops!  There will be four workshops conducted during February at the following sites:

Wednesday, February 17, 2016, Marine on St Croix
William O'Brien State Park, Visitor Center
16821 O'Brien Trail North, Marine on St. Croix, MN 55047

Thursday, February 18, 2016, Mankato
Loose Moose Saloon & Conference Center
119 South Front Street, Mankato, MN 56001

Wednesday, February 24, 2016, Carlton
Carlton County Transportation Building, Meeting Room
1630 County Road 61, Carlton, MN 55718

Thursday, February 25, 2016, Fergus Falls
Otter Tail Government Service Center, Meeting Room
500 West Fir Avenue, Fergus Falls, MN 56537

Whether you would like to become a Forest Pest First Detector or are already one and would like to
attend to receive updated information, consider registering for one of these workshops. Among the topics we will cover will include emerald ash borer, Asian lo…