Codling Moth: Suppression by Male Removal with Sex Pheromone Traps in an Isolated Apple Orchard12

Madsen, Harold F.; Vakenti, Jerry M.; Peters, F. E.

doi:10.1093/jee/69.5.597

Cited by 22 publications

(16 citation statements)

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“…When comparing the percentage of reductions (control efÞciency) of infestation at different test sites for each generation, the College Road site had the largest reduction, followed by the Zhichun Road and the North Shuangyushu Road sites (Table 4), an order the reverse of the initial population density (Table 1). These results are consistent with those of Madsen et al (1976) in Okanagan Mission, British Columbia, where pheromone traps were installed at a density of Ϸ10/ha for controlling the codling moth, C. pomonella (L.) by male removal in an isolated, 2-ha apple orchard for 3 yr. The percentage of codling moth injured fruit was reduced to 0.03, 0.53, and 0.06%, respectively, during the 3-yr tests.…”

Section: Infestation Of Petioles and Seed Podssupporting

confidence: 85%

“…The rate of injured fruit was reduced by 50.3Ð72.8%, when compared with insecticide based treatment controls (Meng et al 1985). Codling moth control by male removal is effective only when populations are low and where isolation precludes reinfestation (Madsen et al 1976, Madsen andCarty 1979). Further, Huber et al (1979) speculated that the best chance of success for large scale pheromone mass trapping of male pink bollworm moth, Pectinophora gossypiella (Saunders), would be in an area where relatively low populations were present early in the cotton growing season and in an isolated cotton growing area.…”

Section: Infestation Of Petioles and Seed Podsmentioning

confidence: 99%

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Chinese TortrixCydia trasias(Lepidoptera: Olethreutidae): Suppression on Street-Planting Trees by Mass Trapping with Sex Pheromone Traps

et al. 2002

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Mass trapping to control the Chinese tortrix Cydia trasias (Meyrick) by removal of males using sex pheromone traps was evaluated in three plots of Chinese scholar-trees Sophora japonica L. in Beijing, China, in 2000. The traps, baited with 0.25 mg C. trasias synthetic sex pheromone (60% E8, E10-dodecadienyl acetate (E8, E10 Ð12:Ac) and 40% E8, E10-dodecadien-1-ol (E8, E10 Ð 12:OH), were deployed in the trapping plots at a density of one trap per two trees. The trees in all plots were planted Ϸ4.5 m apart along pedestrian paths. In the trapping plot on Zhichun Road, the mating rates of caged virgin females were reduced by 70.65% and 66.48% when compared with the control plots during the overwintering-and second-generation moth ßight-period, respectively. Population densities of hibernating larvae on tree trunks during the third generation were signiÞcantly lower than those of the overwintered generation (the third generation of the previous year). Tunneled petioles caused by Þrst-and second-generation larvae were reduced by 47Ð79% and 62Ð 81%, respectively. Bored seed pods caused by third-generation larvae were reduced by 87Ð96%. Higher initial populations in the trapping plot on North Shuangyushu Road may have led to the higher observed petiole and seed pod injuries than in the other two plots during the second and third generations. Thus, male removal using sex pheromone traps is a promising means of effectively controlling C. trasias on street-planted Chinese scholar-trees.

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Section: Infestation Of Petioles and Seed Podssupporting

confidence: 85%

Section: Infestation Of Petioles and Seed Podsmentioning

confidence: 99%

Chinese TortrixCydia trasias(Lepidoptera: Olethreutidae): Suppression on Street-Planting Trees by Mass Trapping with Sex Pheromone Traps

et al. 2002

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“…Recent experiments in Canada (MacLellan 1976, Madsen et al 1976 have shown that removal of adult males using pheromone traps can suppress codling moth populations. The life tables suggest that this technique should also be useful for codling moth control in Nelson, so long as nearby sources of immigrant moths are eliminated.…”

Section: Discussionmentioning

confidence: 99%

Integrated control of apple pests in New Zealand 10. Population dynamics of codling moth in Nelson

Wearing¹

1979

New Zealand Journal of Zoology

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Sampling methods are described for estimating the population density, mortality, and natality of a univtoltine population of codling moth attacking mature apple trees (cv. 'Delicious') at Nelson, New Zealand. These methods were used to construct life tables for the species over eight generations (1967-68 to 1974-75) on trees variously sprayed and not sprayed with ryania in an integrated control programme. Bait trilPS provided a sensitive measure of seasonal adult population density. Analysis of the life tables shows that migration of adults was the main key factor and that overwintering larval mortality (particularly that due to bird predation), fecundity, and ryania also made a major contribution to variation in generation mortality. In the absence of ryania the resident population usually increased between generations, whereas it usually decreased when ryania sprays were applied. The density dependence of overwintering larval mortality was due to bird predation, and the inverse density deperidence of larval mortality from ryania was due to changes in the site of fruit entry with larval population density. Fecundity was density independent, and inconclusive evidence was obtained on the density dependence of migration. The wide variation in fecundity is attributed primarily to weather conditions. The impact on control strategy of the above key factors, density dependence, and total natural mortality is discussed. Ryania is found to be uneconomic, whereas the granulosis virus of codling moth and male removal with pheromone traps show promise' as future control methods. The need to eliminate reservoirs of codling moth close to orchards under integrated pest control is emphasised. Regulation of codling moth populations at Nelson on neglected, unsprayed trees appears to result from intraspecific competition for fruits and cocooning sites, and weakly density-dependent mortality of mature larvae when seeking cocooning sites and while overwintering in their cocoons. Variation in fecundity also cohtributes to fluctuations in abundance of the species. In contrast, at low density in an integrated control programme no intraspecific competition was evident; migration, winter mortality, and fecundity were the main determinants of abundance. This illustrates the need to study pest populations at densities similar to those tolerable commercially.

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“…Monitoring, combined with visual inspection for the codling moth, Laspeyresia pomonella, is successfully used to time sprays in British Columbia (581). MADSEN et al (582) have reported that, without the use of sprays, mass trapping of the codling moth resulted in population suppression and in the maintenance of fruit damage within acceptable commercial standards. Since the experiment was carried out in an isolated apple orchard, it is hard to predict the general applicability of a trap-out strategy.…”

Section: Lepidopteramentioning

confidence: 99%

Insect Pheromones: A Critical Review of Recent Advances in Their Chemistry, Biology, and Application

Brand

Young²,

Silverstein

1979

Fortschritte Der Chemie Organischer Naturstoffe / Progress in the Chemistry of Organic Natural Products

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Codling Moth: Suppression by Male Removal with Sex Pheromone Traps in an Isolated Apple Orchard12

Cited by 22 publications

References 0 publications

Chinese TortrixCydia trasias(Lepidoptera: Olethreutidae): Suppression on Street-Planting Trees by Mass Trapping with Sex Pheromone Traps

Chinese TortrixCydia trasias(Lepidoptera: Olethreutidae): Suppression on Street-Planting Trees by Mass Trapping with Sex Pheromone Traps

Integrated control of apple pests in New Zealand 10. Population dynamics of codling moth in Nelson

Insect Pheromones: A Critical Review of Recent Advances in Their Chemistry, Biology, and Application

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