Behavioral response of femaleHelicoverpa (Heliothis)armigera HB. (Lepidoptera: Noctuidae) moths to synthetic pigeonpea (Cajanus cajan L.) kairomone

1996 ◽  
Vol 22 (4) ◽  
pp. 821-837 ◽  
Author(s):  
Elke Hartlieb ◽  
Heinz Rembold
Keyword(s):  
Behavioral Response ◽  
Cajanus Cajan ◽  
Heliothis Armigera ◽  
Lepidoptera Noctuidae

Incidence of Helicoverpa armigera (Lepidoptera: Noctuidae) and its natural enemies on smallholder crops in Kenya

1993 ◽  
Vol 83 (3) ◽  
pp. 321-328 ◽  
Author(s):  
H. van den Berg ◽  
M. J. W. Cock ◽  
G. I. Oduor ◽  
E. K. Onsongo
Keyword(s):  
Helicoverpa Armigera ◽  
Heliothis Armigera ◽  
Population Densities ◽  
Parasitoid Species ◽  
Larval Parasitoid ◽  
Total Percentage ◽  
Four Seasons ◽  
Helicoverpa Armígera ◽  
Lepidoptera Noctuidae ◽  
Experimental Plots

AbstractSmallholder crops (sunflower, maize, sorghum and cotton) were grown in experimental plots at seven sites, representing different agricultural zones of Kenya, over four seasons. Helicoverpa armigera (Hübner) (formerly Heliothis armigera) only occasionally achieved population densities sufficient to cause obvious damage to the crops, and was virtually absent from the coastal sites. At the inland sites, infestation and mortality levels varied greatly. Information is presented on the incidence of H. armigera, and the identity, distribution and frequency of its common parasitoids and (potential) predators, sampled in the experimental plots. Trichogrammatoidea spp., egg parasitoids, and Linnaemya longirostris (Macquart), a tachinid late-larval parasitoid, were the most common parasitoid species, but total percentage parasitism was rather low. Of the large complex of predators, only anthocorids and ants (predominantly Pheidole spp., Myrmicaria spp. and Camponotus spp.) were sufficiently common and widespread to be of importance in suppressing H. armigera. The abundance of predators fluctuated widely between sites, but anthocorids were most abundant at the western sites.

Acoustic responsiveness of Scoliopteryx libatrix L. (Lepidoptera: Noctuidae), a moth that shares hibernacula with some insectivorous bats

1973 ◽  
Vol 51 (7) ◽  
pp. 681-685 ◽  
Author(s):  
K. D. Roeder ◽  
M. B. Fenton
Keyword(s):  
Avoidance Response ◽  
Behavioral Response ◽  
Room Temperature ◽  
Insectivorous Bats ◽  
Auditory Detection ◽  
Tympanic Organ ◽  
Lepidoptera Noctuidae

Adult Scoliopteryx libatrix L. overwinter in the entrance areas of caves and mines in Ontario, which also harbor hibernating bats. The tympanic organs of S. libatrix taken from hibernation and tested at room temperature were found to be sensitive to ultrasound between 20 and 40 kHz, which overlaps with the frequencies used by the bats with which it shares hibernacula. The sensitivity of the tympanic organ and the connector neurons in the protocerebrum is +5–10 decibels (dB) greater than those of other noctuid moths for which data are available. In spite of the auditory detection of ultrasonic pulses and transmission of the resultant stimuli to the protocerebrum, S. libatrix in stationary flight showed no avoidance response to a source of ultrasonic pulses. This behavior is markedly different from that of some other noctuid moths tested during their activity periods. The significance of the absence of a behavioral response in the moths is discussed in relation to the activity of bats around the caves and mines.

scholarly journals The Biology and Ecology of Heliothis-Armigera (Hubner) and Heliothis-Punctigera Wallengren (Lepidoptera, Noctuidae) in Australia - What Do We Know

1986 ◽  
Vol 34 (6) ◽  
pp. 779 ◽  
Author(s):  
MP Zalucki ◽  
G Daglish ◽  
S Firempong ◽  
P Twine
Keyword(s):  
Host Plant ◽  
Population Biology ◽  
Host Plants ◽  
Control Strategies ◽  
Heliothis Armigera ◽  
Host Plant Selection ◽  
Mortality Factors ◽  
Insecticide Treatment ◽  
And Control ◽  
Lepidoptera Noctuidae

The taxonomy and identification of Heliothis armigera and H. punctigera, their distribution and host plants in Australia, the effect of host plant on reproduction and on the development and survival of immature stages, their movements, population biology and dynamics, and their control, are reviewed. Areas where further study is desirable include: the nature of host plant selection and host species preference; adaptability to new cultivars; effects of host plant on development; detailed life-table studies on different host plants; the contribution of predation, parasitism and disease to mortality; factors responsible for fluctuations in populations between years, including the origins of outbreak populations; and control strategies other than insecticide treatment.

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