Identification of a sex pheromone ofHeliothis subflexa (GN.) (Lepidoptera: Noctuidae) and field trapping studies using different blends of components

1981 ◽  
Vol 7 (6) ◽  
pp. 1011-1022 ◽  
Author(s):  
P. E. A. Teal ◽  
R. R. Heath ◽  
J. H. Tumlinson ◽  
J. R. McLaughlin
Keyword(s):  
Sex Pheromone ◽  
Field Trapping ◽  
Lepidoptera Noctuidae

scholarly journals Sex pheromone of the pink grass worm Tmetolophota atristriga (Walker)

2008 ◽  
Vol 61 ◽  
pp. 387-387
Author(s):  
V.J. Mitchell ◽  
L.M. Manning ◽  
A.M. El-Sayed
Keyword(s):  
Sex Pheromone ◽  
Virgin Female ◽  
Field Trapping ◽  
Pheromone Gland ◽  
Binary Blends ◽  
Sex Pheromone Gland ◽  
Pheromone Components ◽  
Hexadecyl Acetate ◽  
Minor Compounds ◽  
Lepidoptera Noctuidae

The New Zealand native moth Tmetolophota atristriga (Walker) (Lepidoptera Noctuidae) is a background pest defoliating pasture This project identified the pheromone components of the female pink grass worm that could be used to trap male moths in a control or monitoring programme Extraction of the sex pheromone gland of virgin female moths and GCMS analysis has identified several compounds in the sex pheromone gland two monounsaturated compounds cis11hexadecenal (Z1116Ald) and cis11hexadecyl acetate (Z1116Ac) and three saturated compounds hexadecan1ol (16OH) hexadecyl acetate (16Ac) and octadecan1ol (18OH) and triene hydrocarbon (ZZZ)369tricosatriene (Z3Z6Z923Hy) A field trapping experiment was conducted using binary blends of the two main compounds Z1116Ald and Z1116Ac at five different ratios (ie 1000 7525 5050 2575 and 0100) The highest catch was obtained at ratio 2575 of Z1116AldZ1116Ac; males were also caught at the 5050 ratio No catches were recorded with any other ratio tested A dose response experiment was conducted testing five loadings of the optimum binary (2575 ratio) mixture (01 1 10 100 and 1000 mg loading) and males were caught only at 01 and 1 mg loadings In a field trapping experiment conducted late in the season (2008) using the three additional minor compounds only the addition of Z3Z6Z923Hy to the binary mixture significantly enhanced male attraction

(Z)-11-HEXADECEN-1-OL: A BEHAVIORAL MODIFYING CHEMICAL PRESENT IN THE PHEROMONE GLAND OF FEMALE HELIOTHIS ZEA (LEPIDOPTERA: NOCTUIDAE)

1984 ◽  
Vol 116 (5) ◽  
pp. 777-779 ◽  
Author(s):  
P. E. A. Teal ◽  
J. H. Tumlinson ◽  
J. R. McLaughlin ◽  
R. Heath ◽  
R. A. Rush
Keyword(s):  
Sex Pheromone ◽  
Heliothis Zea ◽  
Field Trapping ◽  
Behavioral Effects ◽  
Pheromone Gland ◽  
Sex Pheromone Components ◽  
Pheromone Components ◽  
Lepidoptera Noctuidae

Fourteen and 16 carbon saturated and monounsaturated aldehydes have been identified as sex pheromone components for the four. species of Heliothis studied to date (Nesbitt et al. 1979; Klun et al. 1979; Teal et al. 1981). With the exception of H. zea (Boddie), the alcohol corresponding to the major aldehyde component, (Z)-1 l-hexadecen- 1-ol (Zl l-16:OH), also has been found in pheromone gland extracts of all species. We report here the identification of Zll-16:OH from pheromone gland extracts of H. zea females and the results of field trapping studies used to assess the behavioral effects of this compound on conspecific males.

The influence of behaviour modifying chemicals on mating success of the red bollworm Diparopsis castanea Hmps. (Lepidoptera, Noctuidae) in Malawi

1976 ◽  
Vol 66 (2) ◽  
pp. 279-300 ◽  
Author(s):  
R. J. Marks
Keyword(s):  
Sex Pheromone ◽  
Sexual Attraction ◽  
Practical Method ◽  
Pheromone Trap ◽  
Cotton Field ◽  
Field Cage ◽  
Synthetic Sex Pheromone ◽  
Trap Catches ◽  
First Time ◽  
Lepidoptera Noctuidae

AbstractThe synthetic sex pheromone (dicastalure) of the red bollworm of cotton, Diparopsis castanea Hmps., in Central and Southern Africa, and an inhibitor of male sexual attraction (trans-9-dodecenyl acetate,=IIA), were used in an enclosed 0·2 ha cotton field-cage to reduce successful female matings. Over one month dicastalure at 21·0 and 42·3 g/ha produced average reductions in mating of 47·9% and 72·5% respectively and 37·9 g IIA/ha produced an overall reduction in mating of 71·5%, or 79·5% in released moth populations, over the same period. The proportion of virgin females present in disruption situations was significantly greater than in untreated populations and was density-independent for moth populations of up to 2 200/ha. The proportion of fertile eggs in disruption situations was correspondingly reduced to 30·2% from an average of 67·9% in control cycles. Reduction in sex pheromone trap catches is an unsatisfactory indicator of the extent to which males are prevented from inseminating females and considerably over-estimates the true degree of disruption. This is the first time that a naturally occurring inhibitor has been used successfully to disrupt mating in a field population of insects and it indicates the potential of the method for the control of high density pest populations in cotton. However, use of polyethylene dispensing mechanisms similar to those used in the field-cage disruption experiments would be unsuitable as a practical method of dispensing behaviour modifying chemicals and it is suggested that, for suitably controlled release of such chemicals, currently available microencapsulation technology offers the best prospects.

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