scholarly journals Nonanal modulates oviposition preference in female Helicoverpa assulta (Lepidoptera: Noctuidae) via the activation of peripheral neurons

2020 ◽  
Vol 76 (9) ◽  
pp. 3159-3167
Author(s):  
Chan Wang ◽  
Guannan Li ◽  
Changjian Miao ◽  
Man Zhao ◽  
Bing Wang ◽  
...  
Keyword(s):  
Oviposition Preference ◽  
Helicoverpa Assulta ◽  
Peripheral Neurons ◽  
Lepidoptera Noctuidae

Effects of the sap of the common oleander Nerium indicum (Apocyanaceae) on male fertility and spermatogenesis in the oriental tobacco budworm Helicoverpa assulta (Lepidoptera, Noctuidae)

2001 ◽  
Vol 204 (22) ◽  
pp. 3935-3942 ◽  
Author(s):  
Seong Eun Jeong ◽  
Yun Lee ◽  
Jeong Hee Hwang ◽  
Douglas C. Knipple
Keyword(s):  
Male Fertility ◽  
Chemical Constituents ◽  
Direct Injection ◽  
Arginine Decarboxylase ◽  
Tobacco Budworm ◽  
Polyamine Metabolism ◽  
Helicoverpa Assulta ◽  
Continuous Feeding ◽  
The Common ◽  
Lepidoptera Noctuidae

SUMMARY We investigated the effects of sap of the common oleander Nerium indicum (Apocyanaceae) on male fertility and spermatogenesis in the oriental tobacco budworm Helicoverpa assulta. We found that continuous feeding of oleander sap during the larval period significantly affects fertility in males but not in females. This effect was also induced by direct injection of oleander sap into the hemocoel of 2-day-old pupae. Histological analyses of developing testes following oleander injection revealed a developmental delay and progressively more severe morphological abnormalities in the later stages of development. The effects of oleander sap on spermatogenesis in H. assulta were associated with greatly reduced levels of the two major polyamines, spermidine and spermine, in testis compared with saline-injected controls. In contrast, levels of putrescine, which is a precursor of both spermidine and spermine, and the activities of the enzymes ornithine decarboxylase and arginine decarboxylase, which are involved in the biosynthesis of putrescine, were initially elevated following oleander injection, but subsequently failed to undergo the induction that normally occurs during late pupal development. The effects of oleander sap on spermidine and spermine levels could be the result of direct inhibition by chemical constituents of the oleander sap of one of the enzymes used in common in the conversions of putrescine to spermidine and spermidine to spermine; alternatively, these effects on polyamine metabolism could be secondary to the disruption of a more fundamental process in the developmental program guiding spermatogenesis in H. assulta.

An odorant receptor and glomerulus responding to farnesene in Helicoverpa assulta (Lepidoptera: Noctuidae)

2019 ◽  
Vol 115 ◽  
pp. 103106 ◽  
Author(s):  
Han Wu ◽  
Rui-Ting Li ◽  
Jun-Feng Dong ◽  
Nan-Ji Jiang ◽  
Ling-Qiao Huang ◽  
...  
Keyword(s):  
Odorant Receptor ◽  
Helicoverpa Assulta ◽  
Lepidoptera Noctuidae

Genetic Variability in Oviposition Preference among and Within Populations of the Cotton Bollworm (Lepidoptera: Noctuidae)

1993 ◽  
Vol 86 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Kenneth E. Ward ◽  
Jane Leslie Hayes ◽  
Rufina C. Navasero ◽  
D. D. Hardee
Keyword(s):  
Genetic Variability ◽  
Oviposition Preference ◽  
Cotton Bollworm ◽  
Lepidoptera Noctuidae

Resistance of Helicoverpa assulta (Guenée) (Lepidoptera: Noctuidae) to fenvalerate, phoxim and methomyl in China

2009 ◽  
Vol 28 (2) ◽  
pp. 162-167 ◽  
Author(s):  
Xiao Ming Xia ◽  
Kai Yun Wang ◽  
Hong Yan Wang
Keyword(s):  
Helicoverpa Assulta ◽  
Lepidoptera Noctuidae

A receptor-neuron correlate for the detection of attractive plant volatiles in Helicoverpa assulta (Lepidoptera: Noctuidae)

2018 ◽  
Vol 97 ◽  
pp. 31-39 ◽  
Author(s):  
Wei-chan Cui ◽  
Bing Wang ◽  
Meng-bo Guo ◽  
Yang Liu ◽  
Emmanuelle Jacquin-Joly ◽  
...  
Keyword(s):  
Plant Volatiles ◽  
Receptor Neuron ◽  
Helicoverpa Assulta ◽  
Lepidoptera Noctuidae

Female sex pheromone of oriental tobacco budworm,Helicoverpa assulta (Guenee) (Lepidoptera: Noctuidae): Identification and field testing

1992 ◽  
Vol 18 (3) ◽  
pp. 403-418 ◽  
Author(s):  
A. Cork ◽  
K. S. Boo ◽  
E. Dunkelblum ◽  
D. R. Hall ◽  
K. Jee-Rajunga ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Field Testing ◽  
Tobacco Budworm ◽  
Female Sex Pheromone ◽  
Helicoverpa Assulta ◽  
Female Sex ◽  
Lepidoptera Noctuidae

scholarly journals Oviposition Preference of Spodoptera latifascia (Lepidoptera: Noctuidae) for Sorghum, Maize and Non-Crop Vegetation

1996 ◽  
Vol 79 (4) ◽  
pp. 552 ◽  
Author(s):  
Hector E. Portillo ◽  
Henry N. Pitre ◽  
Dan H. Meckenstock ◽  
Keith L. Andrews
Keyword(s):  
Oviposition Preference ◽  
Lepidoptera Noctuidae
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