scholarly journals Life Tables of Habrobracon hebetor (Hymenoptera: Braconidae) Parasitizing Anagasta kuehniella and Plodia interpunctella (Lepidoptera: Pyralidae): Effect of Host Density

2008 ◽  
Vol 101 (3) ◽  
pp. 982-988 ◽  
Author(s):  
P. A. Eliopoulos ◽  
G. J. Stathas
Keyword(s):  
Host Density ◽  
Plodia Interpunctella ◽  
Life Tables ◽  
Habrobracon Hebetor ◽  
Anagasta Kuehniella ◽  
Lepidoptera Pyralidae

A key to the larvae of some species of Phycitinae (Lepidoptera, Pyralidae) associated with stored products, and of some related species

1963 ◽  
Vol 54 (2) ◽  
pp. 175-188 ◽  
Author(s):  
Audrey D. Aitken
Keyword(s):  
Plodia Interpunctella ◽  
Economic Importance ◽  
Stored Products ◽  
Mussidia Nigrivenella ◽  
Important Species ◽  
Anagasta Kuehniella ◽  
Cadra Cautella ◽  
Ephestia Elutella ◽  
Lepidoptera Pyralidae ◽  
Imported Food

A key to the fully grown larvae of 11 species of Phycitinae is given. Of these, the following eight are known in Britain either as stored-products pests or associated with imported food:— Ephestia elutella (Hb.), Anagasta kuehniella (Zell.), Cadra cautella (Wlk.), C. calidella (Gn.), C. figulilella (Gregson), Plodia interpunctella (Hb.), Mussidia nigrivenella Rag. and Ectomyelois ceratoniae (Zell.). The key is preceded by a brief account of the economic importance of these species in Britain.The other three species are Ectomyelois decolor (Zell.), E. muriscis (Dyar) and Paramyelois transitella (Wlk.). Although these are native to the Americas and are unknown in Britain, they comprise, together with E. ceratoniae, the economically important species formerly of the genus Myelois Huebner.The larvae of Mussidia nigrivenella, P. transitella and of the three species of Ectomyelois are described.

scholarly journals Influence of Temperature and Photoperiod on the Fecundity of Habrobracon hebetor Say (Hymenoptera: Braconidae) and on the Paralysis of Host Larvae, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae)

Insects ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 753
Author(s):  
George N. Mbata ◽  
Sanower Warsi ◽  
Mark E. Payton
Keyword(s):  
Low Temperatures ◽  
Plodia Interpunctella ◽  
Time Intervals ◽  
Influence Of Temperature ◽  
Habrobracon Hebetor ◽  
Stored Product Pest ◽  
Different Temperatures ◽  
Lepidoptera Pyralidae ◽  
Short Time ◽  
Favorable Temperature

Studies were carried out in the laboratory to understand the optimum environmental conditions at which the ectoparasitoid, Habrobracon hebetor Say (Hymenoptera: Braconidae), can paralyze and lay eggs when reared on the larvae of the stored product pest, Plodia interpunctella Hübner (Lepidoptera: Pyralidae). At the four temperatures investigated (20, 25, 30, and 35 °C), optimum temperatures for oviposition were found to be 25 and 30 °C, while 35 °C was the least favorable temperature. No significant differences were found between the percentages of diapausing and non-diapausing larvae paralyzed by the wasp at the temperatures of 20, 25, 30, 35 °C within 5 days. However, in another experiment that investigated the effect of photoperiods at different temperatures that included 15, 19 and 28 °C, the number of paralyzed larvae was highly reduced at low temperatures (15 °C) but photoperiods had no significant impact on the number of host larvae paralyzed. In addition, observations at short time intervals also showed that lower temperatures slowed down host larvae paralysis. The results suggest that H. hebetor can paralyze host larvae of P. interpunctella more efficiently and deposit more eggs at temperatures within the range of 20–30 °C.

scholarly journals FUNCTIONAL RESPONSE OF HABROBRACON HEBETOR SAY (HYM.: BRACONIDAE) TO MEDITERRANEAN FLOUR MOTH (ANAGASTA KUEHNIELLA ZELLER), IN RESPONSE TO PESTICIDES

2013 ◽  
Vol 53 (4) ◽  
pp. 399-403 ◽  
Author(s):  
Vahid Mahdavi ◽  
Moosa Saber
Keyword(s):  
Biological Control ◽  
Functional Response ◽  
Biological Control Agent ◽  
Host Density ◽  
Field Studies ◽  
Control Agent ◽  
Habrobracon Hebetor ◽  
Young Females ◽  
Anagasta Kuehniella ◽  
Chemical Material

Abstract The functional response is a behavioral phenomena defined as the relation between the parasitized host per each parasitoid and host density. This phenomenon can be useful in assessing parasitoid efficiency for the biological control of the host. Parasitoid wasps are most important insects and they play a significant role in the natural control of pests via their parasitism activities. In this study, the effects of diazinon and malathion were evaluated on the functional response of Habrobracon hebetor Say to different densities of last instar larvae of Anagasta kuehniella Zeller. Young adult females (< 24 h old) of the parasitoid were exposed to LC30 values of pesticides. Host densities of 2, 4, 8, 16, 32, and 64 were offered, to treated young females for 24 h in 10 cm Petri dishes. At this point, the parasitism data were recorded. The experiments were conducted in eight replications. The functional response was type Ш in the control and insecticide treatments. Searching efficiency in the control, diazinon and malathion-treated wasps were 0.008±0.002, 0.003±0.002, and 0.004±0.002 h-1, handling times were 1.38±0.1, 7.95±0.91, and 6.4±0.81 h, respectively. Diazinon and malathion had the highest and the lowest effect on searching efficiency of H. hebetor, respectively. After conducting advanced field studies, it was found that malathion may be used as a compatible chemical material with biological control agent in IPM programs.

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