Lethality of reduced-risk insecticides against plum curculio (Coleoptera: Curculionidae) in blueberries, with emphasis on their curative activity

Rodriguez‐Saona, Cesar; Wise, John C.; Polk, Dean; Leskey, Tracy; Vandervoort, Christine

doi:10.1002/ps.3509

Cited by 5 publications

(5 citation statements)

References 35 publications

(59 reference statements)

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“…parallela eggs, but weak adulticidal activity and moderate larvicidal, particularly on 1st instars, activity. Ovicidal activity of novaluron has been shown for lepidopteran (e.g., [ 36 , 45 ]), and coleopteran (e.g., [ 46 , 47 ]), pests. The use of the IGR novaluron as an ovicidal-larvicidal insecticide, as well as neonicotinoids, in cranberries may be limited by their potential toxicity to bees (e.g., [ 48 , 49 , 50 ]).…”

Section: Discussionmentioning

confidence: 99%

Toxicity of Insecticides on Various Life Stages of Two Tortricid Pests of Cranberries and on a Non-Target Predator

Rodriguez‐Saona

Wanumen

Salamanca

et al. 2016

Insects

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Laboratory and extended laboratory bioassays were conducted to determine the residual toxicities of various insecticides against two key pests of cranberries, Sparganothis sulfureana and Choristoneura parallela (Lepidoptera: Tortricidae), and their non-target effects on the predatory Orius insidiosus (Hemiptera: Anthocoridae). The effects of nine insecticides with different modes of action on S. sulfureana and Ch. parallela eggs, larvae, and adults were tested in the laboratory, while the efficacy of a post-bloom application on larval mortality and mass of these pests and on adult O. insidiosus was evaluated in extended laboratory experiments. The organophosphate chlorpyrifos and the spinosyn spinetoram provided long-lasting (seven-day) control against all stages of both pests. The growth regulator methoxyfenozide and the diamides chlorantraniliprole and cyantraniliprole had strong (1–7 days) larvicidal, particularly on young larvae, and growth inhibitory activity, but only the diamides were adulticidal. Among neonicotinoids, acetamiprid had stronger ovicidal and adulticidal activity than thiamethoxam, showing within-insecticide class differences in toxicities; however, both were weak on larvae. Lethality of novaluron and indoxacarb was inconsistent, varying depending on species and stage. Chlorpyrifos was most toxic to O. insidiosus. These results show species- and stage-specific toxicities, and greater compatibility with biological control, of the newer reduced-risk classes of insecticides than older chemistries.

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Section: Discussionmentioning

confidence: 99%

Toxicity of Insecticides on Various Life Stages of Two Tortricid Pests of Cranberries and on a Non-Target Predator

Rodriguez‐Saona

Wanumen

Salamanca

et al. 2016

Insects

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“…Neonicotinoid and organophosphate insecticides showed curative control of apple maggot, Rhagoletis pomonella (Walsh) (Diptera: Tephritidae) in apples and Rhagoletis indifferens Curran (Diptera: Tephritidae) in cherries (Yee and Alston 2006;. Similar patterns of curative activity were seen on plum curculio, Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae), in apples, cherries, and blueberries (Wise et al 2007;Hoffmann et al 2009;Rodriguez-Saona et al 2013). Curative activity of neonicotinoid and other insecticides has not been tested for spotted-wing drosophila or blueberry maggot in blueberries, but these earlier studies suggest the possibility of such action.…”

Section: Introductionmentioning

confidence: 76%

Curative activity contributes to control of spotted-wing drosophila (Diptera: Drosophilidae) and blueberry maggot (Diptera: Tephritidae) in highbush blueberry

et al. 2014

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Semi-field experiments were used to compare the curative activity of insecticides on spotted-wing drosophila (Drosophila suzukii (Matsumura) (Diptera: Drosophilidae)) and blueberry maggot (Rhagoletis mendax Curran (Diptera: Tephritidae)) in blueberry fruit. The organophosphate phosmet, the spinosyn spinetoram, and neonicotinoids imidacloprid, acetamiprid, and thiamethoxam showed significant lethality on spotted-wing drosophila and blueberry maggot larvae and eggs, when applied topically to blueberry fruit post-infestation. The pyrethroids fenpropathrin and zeta-cypermethrin showed high levels of post-infestation activity on spotted-wing drosophila larvae or eggs, and indoxacarb showed statistically weaker activity. Curative activity is a previously unrecognised contributor to the overall means by which blueberry growers may achieve control of spotted-wing drosophila and blueberry maggot with the use of insecticides in blueberries.

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“…We basically compared two programs, one that relied solely on chemical control and one that, in addition to chemical control, uses trap bushes for monitoring C. nenuphar injury. In our case, chemical control consisted of a pre-bloom spray of novaluron (an insect growth regulator) and a post-bloom spray of phosmet (an organophosphate) to target three stages of the weevil, i.e., egg, larval, and adult growth and survival [28]. These programs resulted in a 3-fold reduction of fruit injury (to about 1%) in 2014.…”

Section: Discussionmentioning

confidence: 99%

“…All plots were also treated with phosmet post-bloom on 28–30 May, after honeybee hives had been removed from the fields. Phosmet has both curative, i.e., reduces larval emergence rates, and adulticidal activity, while novaluron has anti-ovipositional/ovicidal activity [27,28]. Timing of the post-bloom insecticide application was based on injury data obtained from fruit samples across both plots within farms.…”

Section: Methodsmentioning

confidence: 99%

Exploring an Odor-Baited “Trap Bush” Approach to Aggregate Plum Curculio (Coleoptera: Curculionidae) Injury in Blueberries

Rodriguez‐Saona

Nielsen

Shapiro‐Ilan

et al. 2019

Insects

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This 2-year study (2013–2014) assessed the efficacy of an odor-baited “trap bush” approach to aggregate plum curculio, Conotrachelus nenuphar, adult injury, i.e., number of oviposition-scared fruit, in four commercial highbush blueberry farms in New Jersey (USA). In each farm, we compared fruit injury in bushes baited with grandisoic acid and benzaldehyde along the perimeter of trap-bush plots versus unbaited bushes in control plots. We also measured the amount of fruit injury in neighboring bushes (i.e., spillover effect) and in the plots’ interior. In both years, the amount of fruit injury by C. nenuphar adults was greater on and near odor-baited bushes in trap-bush plots compared with those on and near unbaited bushes in control plots, indicative of aggregation. Injury in unbaited bushes neighboring trap bushes was often greater than unbaited bushes in control plots, providing some evidence for a spillover effect. However, no difference in fruit injury was found between interior trap-bush and control plots. Therefore, odor-baited trap bushes can be used in blueberries to manipulate C. nenuphar foraging behavior, i.e., aggregate adults, without compromising injury in field interiors. Under this approach, insecticides could then be targeted at only a few (perimeter-row) bushes within fields rather than entire fields.

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Lethality of reduced-risk insecticides against plum curculio (Coleoptera: Curculionidae) in blueberries, with emphasis on their curative activity

Cited by 5 publications

References 35 publications

Toxicity of Insecticides on Various Life Stages of Two Tortricid Pests of Cranberries and on a Non-Target Predator

Toxicity of Insecticides on Various Life Stages of Two Tortricid Pests of Cranberries and on a Non-Target Predator

Curative activity contributes to control of spotted-wing drosophila (Diptera: Drosophilidae) and blueberry maggot (Diptera: Tephritidae) in highbush blueberry

Exploring an Odor-Baited “Trap Bush” Approach to Aggregate Plum Curculio (Coleoptera: Curculionidae) Injury in Blueberries

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