Lethal and Sublethal Effects of Avermectin B1 on the Western Spruce Budworm (Lepidoptera: Tortricidae)

Robertson, Jacqueline L.; Richmond, Charles E.; Preisler, Haiganoush K.

doi:10.1093/jee/78.5.1129

Cited by 14 publications

(13 citation statements)

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“…Our results showed a reduction of all larval instars of T. absoluta, while the pupal stage showed enhancement in LC 10 . Robertson et al (1985) showed that additional larval mortality from sublethal doses of abamectin on the Choristoneura occidentalis (Walsingham, 1891) (Lep. : Tortricidae) decreased greatly after 10-15 days.…”

Section: Discussionmentioning

confidence: 99%

“…Other studies have also shown harmful effects on reproduction with sublethal doses of abamectin on lepidopteran and dipteran pests (Strong and Brown 1987). Lepidopteran adults treated as larvae with abamectin have generally been shown to have difficulties in mating (Beach and Todd 1985) or reduced fecundity and fertility (Reed et al 1985;Robertson et al 1985;Strong and Brown 1987). Abamectin does not seem to affect reproduction by inducing sterility, but by preventing mating; this, in turn, suppresses oviposition and egg laying (Bariola 1984;Beach and Todd 1985;Strong and Brown 1987).…”

Section: Discussionmentioning

confidence: 99%

“…Avermectins are extremely toxic to various orders of insects and mites. They also disrupt development (Robertson et al 1985;Deecher et al 1990) and reproduction (Bariola 1984;Robertson et al 1985). Siqueira et al (2001) showed the toxicity of abamectin in different populations of tomato leafminer.…”

Section: Introductionmentioning

confidence: 99%

“…:Totricidae) when the eggs were treated with high rates of abamectin. Lepidopteran larvae treated with abamectin have generally been shown to have difficulties in mating (Beach and Todd 1985) or reduced fecundity and fertility (Reed et al 1985;Robertson et al 1985;Strong and Brown 1987). Sublethal doses of abamectin increased the developmental time from neonate to adult eclosion and greatly affected fecundity in Platynota idaeusalis (Walker, 1859) (Lep.…”

Section: Introductionmentioning

confidence: 99%

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Effect of sublethal doses of abamectin on demographic traits of tomato leafminer Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)

Zibaee¹,

Esmaeily²

2017

Journal of Plant Protection Research

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The tomato leafminer, Tuta absoluta is a serious pest of tomato crops worldwide. In this study the effect of sublethal concentrations of abamectin (at 10 and 30% lethal concentrations, LC 10 and LC 30 ) was investigated on developmental and reproduction parameters of the tomato leafminer Tuta absoluta. Lethal concentrations were estimated by leaf dip bioassay on the fourth instar larvae of the T. absoluta that, LC 50 , LC 30 and LC 10 were 0.23, 0.15 and 0.12 mg · l -1 , respectively. The sublethal concentrations led to significant decreases in adult emergence, the percentage of pupation of the parent generation, fecundity and adult longevity compared to the control. Sublethal concentrations significantly decreased the net reproductive rate (R 0 ), intrinsic rate of increase (r), finite rate of increase (λ), and gross reproduction rate (GRR). There was a significant decrease in the time to egg developmental and doubling time (DT) of T. absoluta. However, sublethal concentrations of abamectin had no significant effects on the percentage of pupation, larva, prepupa and pupa developmental periods, hatchability and sex ratio of offspring. The results of this study indicated that sublethal concentrations of abamectin could influence some biological parameters of T. absoluta. The results could also be helpful for making better management decisions for controlling the tomato leafminer.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of sublethal doses of abamectin on demographic traits of tomato leafminer Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)

Zibaee¹,

Esmaeily²

2017

Journal of Plant Protection Research

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“…Not only did the avermectins possess such activity, they were also very active against numerous species of insects and mites (Putter et al 1981). In fact, abamectin was found to be very toxic to western spruce budworm (Robertson et al 1985) and gypsy moth larvae (Deecher et al 1987(Deecher et al , 1989). Both studies gave estimates for field application rates in the order of 10 glha, a very low dosage compared to any insecticides currently in use against these pests.…”

Section: Avermectinsmentioning

confidence: 99%

Naturally derived insecticides: Prospects for forestry use

Helson¹

1992

The Forestry Chronicle

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Much interest exists in using natural chemicals as insecticides. Plants manufacture a vast array of chemicals that help protect them against insect attack. These could serve as sources or models for future insecticides with novel modes of action that are highly effective and safe. Three compounds that are currently receiving much attention are examined for their potential for forestry use in Canada. These compounds are alpha-terthienyl from members of the flowering plant Family, Asteraceae; MK-244, a semi-synthetic analogue of abamectin, which is a natural avermectin compound from the soil microorganism, Streptomyces avermitilis, and neem seed extract and its principal active ingredient, azadirachtin, from the neem tree. Their potential is assessed against seven criteria that must be met for successful development: effectiveness against major forest pests; safety for non-target organisms; degradability in the forest environment; availability in large quantities; economical cost; development by the chemical industry; and acceptability to the public. All three compounds are in early phases of development and although each shows promise by meeting certain criteria, not enough information is available yet to determine their overall suitability. Nevertheless, these examples demonstrate the great potential for finding future insecticides from natural chemicals or their derivatives.

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Baseline toxicity and stage specificity of recently developed reduced‐risk insecticides chlorantraniliprole and spinetoram to obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae)

Sial

Brunner

2011

Pest Management Science

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BACKGROUND: Studies were designed to assess baseline toxicity of the two recently developed reduced‐risk insecticides chlorantraniliprole and spinetoram to obliquebanded leafroller (OBLR), Choristoneura rosaceana (Harris), and to determine stage‐specific effects of these products on OBLR, so that these new chemicals could be judiciously incorporated into IPM programs by targeting only the most susceptible stages of OBLR.RESULTS: Both chlorantraniliprole and spinetoram were highly effective against neonate OBLR larvae at much lower doses than conventional standard azinphosmethyl. Most of the mortality caused by spinetoram occurred during the 4 day exposure period, while significant delayed mortality was observed as a result of chlorantraniliprole treatment during the 7 day recovery period, indicating that chlorantraniliprole is a slower‐acting compound compared with spinetoram. Unlike broad‐spectrum predecessors, the toxicity of chlorantraniliprole significantly increased with larval age. Similarly, the toxicity of spinetoram increased as larvae grew from neonates to third instars.CONCLUSION: Chlorantraniliprole and spinetoram are highly effective against OBLR larvae, regardless of larval age. Incorporation of these reduced‐risk chemistries into IPM programs for OBLR would lead to effective management of this pest in tree fruit systems. Copyright © 2011 Society of Chemical Industry

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Lethal and Sublethal Effects of Avermectin B1 on the Western Spruce Budworm (Lepidoptera: Tortricidae)

Cited by 14 publications

References 0 publications

Effect of sublethal doses of abamectin on demographic traits of tomato leafminer Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)

Effect of sublethal doses of abamectin on demographic traits of tomato leafminer Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)

Naturally derived insecticides: Prospects for forestry use

Baseline toxicity and stage specificity of recently developed reduced‐risk insecticides chlorantraniliprole and spinetoram to obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae)

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