Effect of Neem extract on <i>Lymantria dispar</i> L. (Lepidoptera: Lymantriidae) and <i>Leptinotarsa decemlineata</i> Say. (Coleoptera: Chrysomelidae)

Zabel, A.; Manojlovič, B.; Rajkovic, S.; Stanković, S.; Kostic, and M.

doi:10.1046/j.1439-0280.2002.02006.x

Cited by 31 publications

(23 citation statements)

References 19 publications

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“…Similar feeding reduction was observed in the three concentrations applied (0.25, 0.50 and 1.00%). The antifeedant and deterrent effects of the neem derived were also related for the Chrysomelidae beetles Acalymma vittatum (F.), Diabrotica undecimpunctata Howard Barber (Reed et al, 1982) and Leptinotarsa decemlineata Say (Zabel et al, 2002). Besides neem, other Meliaceae tree, Melia azedarach (L.) products produced antifeedant effect on Diabrotica speciosa (Genn.)…”

Section: Multiple-choice Assaysmentioning

confidence: 82%

Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

Mikami

Ventura

2008

Braz. arch. biol. technol.

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Section: Multiple-choice Assaysmentioning

confidence: 82%

Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

Mikami

Ventura

2008

Braz. arch. biol. technol.

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“…For L. dispar, repellent activity is especially common by plants with high alkaloid contents (Dosktotch, 1980). In recent years, antifeeding effects of various plant extracts have been studied by several authors (Zabel et al, 2002;Milanović, 2006;Kostić, 2008;Gvozdenac et al, 2010Gvozdenac et al, , 2011Pavela, 2010). According to Simmonds (2000), more than 6,250 plants have been tested for different insecticidal activities since 1985, while Parkash and Rao (1997) confirmed that about 870 herbal products with insecticidal or repellent antifeeding effect were used in agriculture.…”

Section: Introductionmentioning

confidence: 99%

Antifeeding activity of several plant extracts against Lymantria dispar L. (Lepidoptera: Lymantriidae) larvae

Gvozdenac

Indjic

Vuković

et al. 2012

Pesticidi i fitomedicina

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SUMMARYLymantria dispar L. is the most devastating polyphagous pest of deciduous forests, orchards and urban greenery. To prevent damages that L. dispar larvae cause in forestry, agriculture and horticulture, mechanical measures and the use of biological insecticides are the most frequently applied practices. However, the use of conventional insecticides is inevitable in crop protection and forest management on smaller areas, especially in gradation years. However, inadequate use of these chemicals has led to disturbance of biocoenotic balance, outbreaks of some previously less harmful organisms and pesticide residues in soil and watercourses in some regions. To mitigate these consequences it is necessary to harmonize L. dispar control with integrated management principles by applying selective and less toxic insecticides. Therefore, the potential of botanical insecticides and antifeeding substances is gaining in importance. The aim of this study was to assess the influence of ethanol extracts (1, 2 and 5%) of Ambrosia artemisiifolia L., Erigeron canadensis L., Daucus carota L., Morus alba L. and Aesculus hippocastanum L. on the feeding intensity of L. dispar larvae, i.e. to evaluate their antifeeding activity under the conditions of "no-choice" test. Ten larvae per repetition were placed in Petri dishes and offered oak leaf slices (2 x 9 cm 2 /repetition) previously dipped in plant extract or ethanol (1, 2, and 5%) for the control. Feeding intensity, expressed as a percentage of consumed leaf area (%), was measured after 48 h. For assessing the antifeeding activity of plant extracts AFI was calculated and the extracts were classified according to scale: no antifeeding activity, slight antifeeding activity, moderate antifeeding activity and strong antifeeding activity. Data were analyzed using a two-way ANOVA and Duncan`s multiple range test. The results indicate that plant species, i.e. the origin of extracts, had a significant influence on the feeding intensity of L. dispar larvae, while concentration and interaction (plant species x concentration) were not factors of influence. Ae. hippocastanum and M. alba extracts significantly reduced the consumed leaf area (6.24, 18.93%, respectively), compared to the control (97.59%), while the extract of D. carota had a phagostimulative effect (98.88%). Based on AFI values, Ae. hippocastanum extract (87. 10-89.05%) had a strong antifeeding activity, and M. alba medium-to-strong (64.33-71.37%).

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“…The contact insecticidal effects of slaked lime and refined rape oil were compared to that of the natural insecticide azadirachtin. The efficacy of the latter on Colorado potato beetle has been well established (Schrod et al, 1996;Zabel et al, 2002;Martel et al, 2005), but the availability of such data for the first two is scarce (Abdalla et al, 1991;Loockwood et al, 2001;Trdan et al, 2006). We started with two hypotheses: namely, that the temperature of the environment has a significant influence on the efficacy of the tested substances and that there is also a significant difference in the susceptibility of different developmental stages to the substances in question.…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on efficacy of three natural substances to Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Trdan

Cirar

Bergant

et al. 2007

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

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Azadirachtin, refined rape oil and slaked lime Á three natural substances with insecticidal potential Á were tested under laboratory conditions for their efficacy against larvae and adults of Colorado potato beetle, Leptinotarsa decemlineata, at 158C, 208C, and 258C. General statistical analysis (all developmental stages and all insecticidal substances taken into account) was performed on the results of the mortality rates of the individuals and no statistically significant differences between the temperatures were observed on the fifth day after application. At all temperatures, the influence of insecticidal substances in question as well as the interaction between the insecticidal substance and the developmental stage of the pest on mortality rates were significant. The individual statistical analysis (a specified developmental stage of the pest at a specified temperature) revealed the maximum efficacy of the refined rape oil at 158C and 208C, the adults being the most sensitive developmental stage (mortality rate about 90%). Other substances tested were less effective, and in general the mortality rate of either larvae or adults did not exceed 50%. In the case that the efficacy of the refined rape oil in controlling the population of the adults of the Colorado potato beetle is confirmed also in field trials, this could be the basis for a better strategy in controlling the overwintered Colorado potato beetles on potato.

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Effect of Neem extract on Lymantria dispar L. (Lepidoptera: Lymantriidae) and Leptinotarsa decemlineata Say. (Coleoptera: Chrysomelidae)

Cited by 31 publications

References 19 publications

Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera

Antifeeding activity of several plant extracts against Lymantria dispar L. (Lepidoptera: Lymantriidae) larvae

Effect of temperature on efficacy of three natural substances to Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

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