Insect Hotline Issue 10

 

 

 

 

 

 

 

Hibiscus sawfly adult.

 

 

 

 

 

 

 

Hibiscus sawfly adult showing the yellowish to brownish tan patch often found on the thorax.

 

 

 

 

 

 

 

Hibiscus sawfly larvae.

 

 

 

 

 

 

 

Extensive Hibiscus sawfly feeding damage.  All photos were found at the following website:  http://www.uark.edu/ua/arthmuse/hibsaw.html.  The images appear to have been taken by J.K. Barnes

What’s Hot HL Issue 9?

 

 

 

 

Currant sawfly (aka imported currantworm) adult.

 

 

 

 

Currant sawfly eggs on leaf.

 

 

 

 

Feeding damage caused by currant sawfly larvae

 

 

 

 

 

Close-up of currant sawfly larvae

All images of imported currantworm (currant sawfly) were provided by:  Whitney Cranshaw, Colorado State University, Bugwood.org.  Images for ambrosia beetle, hemlock woolly adelgid & a variety of lace bugs have been posted previously to this site.  Please use the search function to locate these photos.

Disease Hotline Issue 9

Close-up of Iris rust to the left.  Photo provided by:  Bob Mulrooney, University of Delaware

 

 

 

 

Monolinia blight on Kwanzan cherry.  Photo provided by:  Bob Mulrooney, University of Delaware

 

 

 

Photos for azalea leaf gall, cedar apple rust, cedar quince rust & monolinia blight were posted previously.  Please use the search function to locate these images.