Showing posts with label Bernadette Costa. Show all posts
Showing posts with label Bernadette Costa. Show all posts

Thursday, October 22, 2020

The Courage Garden Fire by Bernadette Costa

 

Photo: Courtesy of Jefferson County Sheriff

It was Thursday, October 8, 10:30 a.m. when I heard about the Courage Garden fire.  I am a master gardener at CSU Extension Office of Jefferson County. 

Thursday, June 21, 2018

Aphids in the Garden by Bernadette Costa

Aphid infestation, photo courtesy UMN Extension
As most of us have discovered, aphids are very common in home landscapes.  Sometimes called plant lice, they are small, soft-bodied, pear-shaped insects, generally less than 1/8” long.  Most are green or black but they can also be found in a variety of other colors as well.  A characteristic common to all aphids is the presence of cornicles, or tubes, on the back ends of their bodies, sort of like “tailpipes”.  These cornicles secrete substances that help protect the aphids from predators.  Over winter, aphids exist as eggs on perennial plants and hatch in the spring.

Sunday, June 23, 2013

Aphids by Bernadette Costa

Aphids on Leaf
Aphids are very common.  Sometimes called plant lice, they are small, soft-bodied, pear-shaped insects, generally less than 1/8” long.  Most are green or black but they can also be found in a variety of other colors as well.  A characteristic common to all aphids is the presence of cornicles, or tubes, on the back ends of their bodies, sort of like “tailpipes”.  These cornicles secrete substances that help protect the aphids from predators.  Over winter, aphids exist as eggs on perennial plants and hatch in the spring.
Aphids are found on almost all types of plants and a few species can cause plant injury. Some aphid species can curl the new leaves of some types of plant. Feeding aphids excrete honeydew, a sticky fluid that can cause nuisance problems. Natural enemies of aphids include lady beetles, flower fly larvae, lacewing larvae, and parasitic wasps.