Synergistic Action of Potassium Chloride and Magnesium Sulfate on Parasitoid Wasp Oviposition
WILLIAM C. NETTLES JR. 1,
RICHARD K. MORRISON 1,
ZHONG-NENG XIE 2,
DEBRA BALL 3,
CYNDY A. SHENKIR 4, and
S. BRADLEIGH VINSON 5
1 U.S. Department of Agriculture, Agricultural Research Service, College Station, Texas 77841
2 Guangdong Institute of Entomology, Guangdong Academy of Sciences, People's Republic of China
3 Department of Entomology, Texas A&M University, College Station 77843
4 U.S. Department of Agriculture, Agricultural Research Service
5 Department of Entomology, Texas A&M University
A dilute solution of potassium chloride and magnesium sulfate induces oviposition in artificial eggs by the egg parasitoids Trichogramma pretiosum and T. minutum. The ability to obtain large numbers of eggs through the use of this inexpensive solution is a major advance toward the development of diets and the large-scale production of Trichogramma spp. in vitro.
Submitted on April 21, 1982
Revised on July 30, 1982
