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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Effect of density of pheromone sources, pheromone dosage and population pressure on mating of pink bollworm, Pectinophora gossypiella (Lepidoptera: Gelechiidae)
Year:
1999
Source of publication :
Bulletin of Entomological Research
Authors :
אנשלביץ', לאוניד
;
.
גורדון, דבורה
;
.
דונקלבלום, עזרא
;
.
Volume :
89
Co-Authors:
Kehat, M., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Anshelevich, L., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Gordon, D., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Harel, M., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Zilberg, L., Eden Experimental Station, Bet Shean, Israel
Dunkelblum, E., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Facilitators :
From page:
339
To page:
345
(
Total pages:
7
)
Abstract:
The effect of density of the Shin-Etsu twist-tie rope pheromone formulation (PBW rope L®) on mating of female pink bollworm, Pectinophora gossypiella (Saunders) was tested in Israel. The success of mating disruption was evaluated during 1997 by the mating table technique, comparing the percentage of mating of virgin sentinel females in pheromone-treated and control plots. Under low pest population pressure application of 'long-life' formulation of P. gossypiella pheromone, PBW rope L®, spaced 9 m, 11 m and 14 m apart, resulted in very high suppression of mating (96.5-100%) and complete shut-down of pheromone trap catch. These application rates were much lower than those now prevailing in Israel and elsewhere. Spacing of ropes 20 m apart resulted in less effective mating disruption of 65% only, and shut-down of pheromone traps was also incomplete. The tests during 1998 were carried out at high pest population and efficacy of treatments was assessed by the reduction of male capture in traps in pheromone-treated plots relative to catches in the control. The distance between pheromone sources proved to be the most critical factor determining success. In both years, any spacing significantly greater than 10 m gave markedly less than complete trap catch shutdown/mating suppression. Pheromone dosages and population density were also important in determining mating success. Results obtained in this study indicate the possibility of reducing the number of pheromone sources per unit area and the total amount of pheromone as compared with that in use today, only at very low pest populations. However at high population levels, dispensers closely-spaced, with increased dosages of pheromone, are required.
Note:
Related Files :
Gelechiidae
Israel
Lepidoptera
Pectinophora gossypiella
population density
population pressure
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25748
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:17
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Scientific Publication
Effect of density of pheromone sources, pheromone dosage and population pressure on mating of pink bollworm, Pectinophora gossypiella (Lepidoptera: Gelechiidae)
89
Kehat, M., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Anshelevich, L., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Gordon, D., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Harel, M., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Zilberg, L., Eden Experimental Station, Bet Shean, Israel
Dunkelblum, E., Institute of Plant Protection, Agricultural Research Organization, Bet Dagan 50250, Israel
Effect of density of pheromone sources, pheromone dosage and population pressure on mating of pink bollworm, Pectinophora gossypiella (Lepidoptera: Gelechiidae)
The effect of density of the Shin-Etsu twist-tie rope pheromone formulation (PBW rope L®) on mating of female pink bollworm, Pectinophora gossypiella (Saunders) was tested in Israel. The success of mating disruption was evaluated during 1997 by the mating table technique, comparing the percentage of mating of virgin sentinel females in pheromone-treated and control plots. Under low pest population pressure application of 'long-life' formulation of P. gossypiella pheromone, PBW rope L®, spaced 9 m, 11 m and 14 m apart, resulted in very high suppression of mating (96.5-100%) and complete shut-down of pheromone trap catch. These application rates were much lower than those now prevailing in Israel and elsewhere. Spacing of ropes 20 m apart resulted in less effective mating disruption of 65% only, and shut-down of pheromone traps was also incomplete. The tests during 1998 were carried out at high pest population and efficacy of treatments was assessed by the reduction of male capture in traps in pheromone-treated plots relative to catches in the control. The distance between pheromone sources proved to be the most critical factor determining success. In both years, any spacing significantly greater than 10 m gave markedly less than complete trap catch shutdown/mating suppression. Pheromone dosages and population density were also important in determining mating success. Results obtained in this study indicate the possibility of reducing the number of pheromone sources per unit area and the total amount of pheromone as compared with that in use today, only at very low pest populations. However at high population levels, dispensers closely-spaced, with increased dosages of pheromone, are required.
Scientific Publication
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