Performance of the Microsprayer, with Application for Pheromone-Mediated Control of Insect Pests

Isaacs, Rufus; Ulczynski, M.; Wright, Brian; Gut, Larry J.; Miller, James R.

doi:10.1093/jee/92.5.1157

Cited by 23 publications

(17 citation statements)

References 12 publications

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“…Low-density, high-release dispensing systems like PuVers ® (Shorey et al 1996;Knight 2004) or Microsprayers (Isaacs et al 1999) are deployed by hand, but at very low densities (ca. 2-3) per ha of crop.…”

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Evaluation of aerosol devices for simultaneous disruption of sex pheromone communication in Cydia pomonella and Grapholita molesta (Lepidoptera: Tortricidae)

et al. 2007

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A two-year study was conducted evaluating PuVer ® aerosol dispensers (Suterra LLC, Bend, OR, USA) for mating disruption of codling moth, Cydia pomonella (L.), and the oriental fruit moth, Grapholita molesta (Busck). The PuVer ® dispenser consists of a pressurized metal canister loaded with pheromone active ingredients dissolved in solvent and housed within a circuit-controlled, plastic dispensing cabinet programmed to release an aerosol spray of pheromone at regular intervals. PuVers ® were deployed at the label-recommended rate of 2.5 ha ¡1 and released ca. 5-10 mg of pheromone (depending on treatment) per 15 min during a 12-h cycle beginning each day at 15:00 h for the duration of the season. In 2005, commercially-managed apple plots (3.2-4.9 ha) were treated with PuVers ® releasing both species' pheromone simultaneously (dual-species) or with twice the number of adjacentlydeployed PuVers ® (4-6 m apart) releasing each individual species' pheromones (single-species), while maintaining comparable overall release rates of pheromone between these two treatments. Plots 100 m away and not treated with pheromone served as the control. Disruption of male C. pomonella and G. molesta orientation to pheromonebaited traps was 46-75 and 91-98%, respectively, in PuVer ® -treated plots compared with untreated controls.There was no statistical diVerence in moth disruption between plots treated with dual-species and single-species PuVers ® . Fruit injury was not statistically diVerent between PuVer ® -treated plots and control plots not receiving pheromone. In 2006, disruption of male moth orientation to traps was 24-26 and 84-97% in PuVer ® -treated plots (2.9-5.7 ha) for C. pomonella and G. molesta, respectively, compared with untreated controls. During this season, fruit injury was lower in pheromone-treated plots compared with untreated controls at mid-season, but not at pre-harvest. Combining the pheromone of both species into single PuVer ® units did not decrease eYcacy of disruption compared with deploying twice as many PuVers ® releasing a similar amount of each individual species' pheromone suggesting that multi-species disruption using PuVers ® is a viable option. However, we conclude that the eYcacy of disruption attained with low-densities (2.5 ha ¡1 ) of PuVers ® at the moth densities recorded in this study is insuYcient for eVective control of C. pomonella without input of companion insecticides.

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Evaluation of aerosol devices for simultaneous disruption of sex pheromone communication in Cydia pomonella and Grapholita molesta (Lepidoptera: Tortricidae)

et al. 2007

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“…The delta trap is slightly more expensive ($4.68 per set) than wing trap ($3.35 per set), but this initial higher cost may be offset because the delta type is more durable and can be reused over multiple seasons. Pheromone mating disruption is increasingly being evaluated as a pest management strategy against leafrollers and other moth pests in North America (Deland et al 1994;Agnello et al 1996;Lawson et al 1996;Shorey and Gerber 1996;Fadamiro et al 1998Fadamiro et al , 1999Isaacs et al 1999). The western lure should provide better mating disruption of C. rosaceana in Minnesota, although the notion that higher mating disruption efÞcacy will result from the use of optimal blend needs to be investigated.…”

Section: Resultsmentioning

confidence: 99%

Pest Phenology and Evaluation of Traps and Pheromone Lures for Monitoring Flight Activity of Obliquebanded Leafroller (Lepidoptera: Tortricidae) in Minnesota Apple Orchards

Fadamiro

2004

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The efficacy of two trap designs (Pherocon 1C "wing" trap versus Pherocon VI "delta" trap) and two pheromone blends for monitoring obliquebanded leafroller, Choristoneura rosaceana (Harris), was evaluated in Minnesota apple orchards during the 2001 and 2002 field seasons. Two distinct flight periods of C. rosaceana were recorded yearly in Minnesota. Overwintered C. rosaceana larvae resumed activity in the spring at approximately 60 degree-days (DD) base 10 degrees C, whereas adult emergence began approximately 275 DD base 10 degrees C. To determine the optimal pheromone blend for monitoring C. rosaceana in Minnesota, traps were baited with either a three-component pheromone blend (Z11-14:Ac, E11-14:Ac, and Z11-14:OH) produced by females in eastern North America, or a four-component blend (Z11-14:Ac, E11-14:Ac, Z11-14:OH, and Z11-14:Al) commonly produced by females in western North America. Of the four pheromone-baited traps evaluated, delta traps baited with the four-component western pheromone lure captured the highest number of C. rosaceana males, followed by wing traps baited with western lure. Male C. rosaceana were less attracted to traps containing the three-component eastern lure, and both lure types seemed to be considerably selective against sympatric redbanded leafroller, Argyrotaenia velutinana (Walker). These results suggest that the pheromonal response of the predominant endemic population of C. rosaceana in Minnesota is similar to the response of the pest in many parts of western North America. The delta trap baited with western pheromone lure of C. rosaceana is recommended for monitoring the pest in Minnesota, and the results are discussed in relation to the development of effective management strategies against this important pest of apple.

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“…However, this will require large-scale investment to conduct the research at this scale, followed by widespread cooperation among neighboring growers. The development of less laborintensive approaches to deployment of pheromone such as puffers (Shorey and Gerber 1996a,b;Isaacs et al 1999;Stelinski et al 2007Stelinski et al , 2009) and applicators that can allow rapid mechanical application of wax matrices to vineyards (Teixeira et al 2010) also may provide greater likelihood of adoption of this tactic for integration into pest management programs for protection against P. viteana.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Three Dispenser Distribution Patterns for Pheromone Mating Disruption of <I>Paralobesia viteana</I> (Lepidoptera: Tortricidae) in Vineyards

Isaacs¹,

Mason²,

Teixeira³

et al. 2012

jnl. econ. entom.

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Over two growing seasons, Isomate GBM-Plus tube-type dispensers releasing the major pheromone component of grape berry moth, Paralobesia viteana (Clemens) (Lepidoptera: Tortricidae), were evaluated in vineyards (Vitis spp.) in Michigan, New York, and Pennsylvania. Dispensers were deployed in three different density-arrangement treatments: 124 dispensers per ha, 494 dispensers per ha, and a combined treatment with 124 dispensers per ha in the vineyard interior and 988 dispensers per ha at the vineyard border, equivalent to an overall density of 494 dispensers per ha. Moth captures and cluster infestation levels were compared at the perimeter and interior of vineyards receiving these different pheromone treatments and in vineyards receiving no pheromone. Orientation of male moths to pheromone-baited traps positioned at the perimeter and interior of vineyards was reduced as a result of mating disruption treatments compared with the nontreated control. These findings were consistent over both years of the study. Disruption of male moth captures in traps varied from 93 to 100% in treated vineyards, with the 494 dispensers per ha application rates providing significantly higher level of disruption than the 124 dispensers per ha rate, but only in 2007. Measurements of percentage of cluster infestation indicated much higher infestation at perimeters than in the interior of the vineyards in all three regions, but in both sample positions there was no significant effect of dispenser density on cluster infestation levels in either year. The contrasting results of high disruption of moth orientation to traps in vineyards that also had low levels of crop protection from this pheromone treatment are discussed in the context of strategies to improve mating disruption of this tortricid pest.

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Performance of the Microsprayer, with Application for Pheromone-Mediated Control of Insect Pests

Cited by 23 publications

References 12 publications

Evaluation of aerosol devices for simultaneous disruption of sex pheromone communication in Cydia pomonella and Grapholita molesta (Lepidoptera: Tortricidae)

Evaluation of aerosol devices for simultaneous disruption of sex pheromone communication in Cydia pomonella and Grapholita molesta (Lepidoptera: Tortricidae)

Pest Phenology and Evaluation of Traps and Pheromone Lures for Monitoring Flight Activity of Obliquebanded Leafroller (Lepidoptera: Tortricidae) in Minnesota Apple Orchards

Comparison of Three Dispenser Distribution Patterns for Pheromone Mating Disruption of <I>Paralobesia viteana</I> (Lepidoptera: Tortricidae) in Vineyards

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