The cytolytic properties of the mosquitocidal 25 Kd protein deltaendotoxin of Bacillus thuringiensis subsp. israelensis (Bti) was studied using the human erythrocyte as a target cell. Both a fixedtime and a kinetic hemolytic bioassay were developed in order to screen a variety of treatments for their influence on the toxinerythrocyte...
A classical biological control project was undertaken
against the filbert aphid, Myzocallis coryli (Goetze), in
western Oregon. Hazelnut orchards in Spain, France, and
Italy were searched for natural enemies of the aphid, and
a parasitic wasp, Trioxys pallidus Haliday, was imported,
quarantined, mass-reared, and released in Oregon orchards.
The wasp...