Simple methods for detection of cytoplasmic polyhedrosis virus in Heliothis virescens

1971 ◽  
Vol 17 (3) ◽  
pp. 451-452 ◽  
Author(s):  
Peter P. Sikorowski ◽  
Joe R. Broome ◽  
Gordon L. Andrews
Keyword(s):  
Heliothis Virescens ◽  
Cytoplasmic Polyhedrosis Virus ◽  
Polyhedrosis Virus

INFLUENCE OF INSECTICIDES - CYTOPLASMIC POLYHEDROSIS VIRUS COMBINATIONS ON PUPAL WEIGHT AND FECUNDITY OF TOBACCO BUDWORM (LEPIDOPTERA: NOCTUIDAE)

1989 ◽  
Vol 24 (4) ◽  
pp. 539-544 ◽  
Author(s):  
Abdul K. Mohamed ◽  
Jen-Rong Yang ◽  
Fred R. S. Nelson
Keyword(s):  
Heliothis Virescens ◽  
Methyl Parathion ◽  
Adult Emergence ◽  
Tobacco Budworm ◽  
Pupal Weight ◽  
Egg Hatch ◽  
Cytoplasmic Polyhedrosis Virus ◽  
Polyhedrosis Virus ◽  
Control Adult ◽  
Lepidoptera Noctuidae

Laboratory studies were conducted to determine the response of healthy and cytoplasmic polyhedrosis virus (CPV) infected Heliothis virescens (F.) larvae to LD50 of methomyl and methyl parathion. Methomyl-CPV combination adversely affected pupal weight and fecundity of the female. The effect of this interaction was synergistic. Exposure of CPV infected larvae to LD50 of methomyl resulted in a mean female pupal weight of 243 mg and a fecundity of 382 per female moth. These values were significantly lower than those of all other treatments. In contrast methyl parathion-CPV combinations did not result in a significant reduction in pupal weight as compared to the control. Adult emergence and egg hatch were not affected.

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