Release, Dispersal, and Recovery of a Laboratory-Selected Strain of the Walnut Aphid Parasite Trioxys pallidus (Hymenoptera: Aphidiidae) Resistant to Azinphosmethyl

1990 ◽  
Vol 83 (1) ◽  
pp. 89-96 ◽  
Author(s):  
M. A. Hoy ◽  
F. E. Cave ◽  
R. H. Beede ◽  
J. Grant ◽  
W. H. Krueger ◽  
...  
Keyword(s):  
Aphid Parasite ◽  
Trioxys Pallidus

THE LARVAL INSTARS OF APHIDIUS SMITHI (HYMENOPTERA: APHIDIIDAE)

1979 ◽  
Vol 111 (5) ◽  
pp. 631-634 ◽  
Author(s):  
R. J. Chorney ◽  
M. Mackauer
Keyword(s):  
Electron Micrographs ◽  
Ventral Side ◽  
Pea Aphid ◽  
Scanning Electron Micrographs ◽  
Diagnostic Features ◽  
Larval Instars ◽  
The Third ◽  
Aphid Parasite ◽  
Feeding Structure ◽  
Scanning Electron

AbstractThe pea aphid parasite Aphidius smithi Sharma & Subba Rao has four larval instars. The first and the fourth instars are mandibulate. The second instar possesses oral lobes but not mandibles. A bilobed feeding structure on the ventral side of the head of the third instar could function as a pharyngeal pump. The chief diagnostic features of each instar are illustrated with scanning electron micrographs. Variability in the number of larval instars among species of Aphidiidae is discussed.

AN UPPER BOUNDARY FOR THE SEX RATIO IN A HAPLODIPLOID INSECT

1976 ◽  
Vol 108 (12) ◽  
pp. 1399-1402 ◽  
Author(s):  
M. Mackauer
Keyword(s):  
Sex Ratio ◽  
Aphid Parasite ◽  
The Mean ◽  
Favourable Environment ◽  
Number Of Males ◽  
Limiting Value ◽  
Upper Boundary

AbstractMated females of the aphid parasite Aphidius smithi produced only unfertilized eggs (i.e. sons) for the first 2–3 h after copulation and a variable proportion of fertilized eggs (i.e. daughters) thereafter. As a result, the mean proportion of daughters among the offspring of single females was always less than unity, even in a highly favourable environment; the limiting value of the sex ratio was estimated at approximately 85% females. An argument is presented that in haplodiploid species with a variable and environmentally controlled sex ratio a male-producing mechanism is required to ensure the production of a sufficient number of males for the fertilization of all females.

A NEW SPECIES OF PRAON (HYMENOPTERA: APHIDIIDAE), PARASITIC ON THE DUSKY-VEINED WALNUT APHID, CALLAPHIS JUGLANDIS (HOMOPTERA: APHIDIDAE)

1982 ◽  
Vol 114 (12) ◽  
pp. 1159-1161 ◽  
Author(s):  
M. Mackauer ◽  
D. J. Sullivan
Keyword(s):  
Biological Control ◽  
New Species ◽  
Juglans Regia ◽  
Aphid Parasite ◽  
A New Species

AbstractThe aphid parasite Praon callaphis, new species, from Afghanistan is described and illustrated. The species was introduced into California for the biological control of Callaphis juglandis (Goeze) on Juglans regia L.

The Toxicity of Some Pesticides to the Woolly Apple Aphid Parasite, Aphelinus mali

PANS ◽  
1978 ◽  
Vol 24 (2) ◽  
pp. 109-110
Author(s):  
H. S. El-Haidari ◽  
R. Georgis
Keyword(s):  
Woolly Apple Aphid ◽  
Aphelinus Mali ◽  
Aphid Parasite
Sign in / Sign up

Export Citation Format

Share Document