How to recognize Ischnodemus variegatus                                                                                                                                                                                                                      

Damage to Hymenachne

Leaves turn red-purplish

a) Infested   b) Uninfested

Severe infestation: Hymenachne turn brown and dies

I. variegatus Adult

Male

 Male and Female

Adults mating

Myakka River State Park, Sarasota Co.

Adult and five instars                                                          Aggregation of nymphs

Note aposematic coloration of early instars

IRREC colony 2004

Eggs

1 day old egg

7 day old egg

Natural Enemies

Beauveria bassiana

Eumicrosoma spp. egg parasitoid

Eggs parasitized

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This site was last updated 08/26/05                                                                                                                                                                                                               

Site prepared by:

Rodrigo Diaz
Biological Control Research & Containment Laboratory

2199 South Rock Road

Fort Pierce, FL 34945-3138

Phone: 772-467-6029 Ext.228

Fax:     772-468-3973

Email: rrdg@ufl.edu