Systemic applications of azadirachtin in the control of Corythucha ciliata (Say, 1832)(Hemiptera, Tingidae), a pest of Platanus sp.

Pavela, Roman; Zabka, Martin; Kalinkin, V.M.; Kotenev, E. S.; Gerus, Aleksei; Щеникова, А. В.; Chermenskaya, T. D.

doi:10.17221/41/2012-pps

Cited by 14 publications

(12 citation statements)

References 20 publications

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“…In another study injecting azadirachtin in the trunks of Platanus sp. under natural conditions, it was found that the density of nymphs and adults of Corythucha ciliata (Say, 1832) (Hemiptera, Tingidae) decreased significantly over 2 years compared to the control (Pavela et al, 2013). Similarly, azadirachtin was found to cause a high mortality of fourth instar nymphs in the present study.…”

Section: Discussionsupporting

confidence: 57%

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Effect of spinosad, azadirachtin and kaolin on Stephanitis pyri (Fabricius, 1775) (Hemiptera: Tingidae) under laboratory conditions

Maral¹

2021

Turkish Journal of Entomology

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This study was conducted in Diyarbakır (Turkey) in 2019 to determine the effects of natural insecticides, spinosad, azadirachtin and kaolin, on the fourth instar nymphs and adults of Stephanitis pyri (Fabricius, 1775) (Hemiptera: Tingidae). The study was conducted under the laboratory conditions; 25 ± 1ºC, 65 ± 5% humidity and 16:8 h L:D photoperiod. The mortality of nymphs 3 and 6 d after treatment with spinosad, azadirachtin and kaolin was 49, 44 and 11%, and 54, 51 and 47%, respectively. The mortality of adults 3 and 6 d after treatment with spinosad, azadirachtin and kaolin was 75, 11 and 14%, and 89, 18 and 12%, respectively. The damage index, feeding damage ratio on the upper surface of the leaf, after spinosad, azadirachtin and kaolin treatment of nymphs was 1.25, 1.50 and 1.50, and adults was 1.00, 2.00 and 2.00, respectively. After the application of spinosad, azadirachtin and kaolin, the number of droppings left by nymphs was 55, 98 and 75, and adults was 15, 98 and 93, respectively. Based these data, spinosad was determined as the most effective product in all parameters except for the fourth instar nymph damage index. However, azadirachtin and kaolin were somewhat inhibitory to nymphs.

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Section: Discussionsupporting

confidence: 57%

“…Azadirachtin gives useful control of insects that are resistant to synthetic pesticides. Azadirachtin is also an insect growth regulator (Isman, 2006;Saha et al, 2011;Pener & Dhadialla, 2012;Pavela et al, 2013;Sánchez-Ramos et al, 2014;Vacante & Kreiter, 2018;Joseph, 2019;Pamela, 2019).…”

Section: Introductionmentioning

confidence: 99%

Effect of spinosad, azadirachtin and kaolin on Stephanitis pyri (Fabricius, 1775) (Hemiptera: Tingidae) under laboratory conditions

Maral¹

2021

Turkish Journal of Entomology

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“…Any ovicidal or nymphicidal effects on the overwintering eggs or emerging young instars can effectively suppress the population build-up later in the season. Previous studies showed that IGRs target the developing immature stages of several insect pests, such as azadirachtin, on Corythucha ciliata (Say) (Hemiptera: Tingidae) [25]; novaluron and methoprene on the storage pests Tribolium castaneum and T. confusum (Coleoptera: Tenebrionidae) [26]; novaluron and diflubenzuron on Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae) [27]; and pyriproxyfen on the sweet potato whitefly Bemisia tabaci (Gennadius) and the greenhouse whitefly Trialeurodes vaporariorum (Westwood) [19].…”

Section: Discussionmentioning

confidence: 99%

Influence of Insect Growth Regulators on Stephanitis pyrioides (Hemiptera: Tingidae) Eggs and Nymphs

Joseph

2019

Insects

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The azalea lace bug, Stephanitis pyrioides (Scott) (Hemiptera: Tingidae), is an important insect pest of azaleas (Rhododendron L. spp.) in the USA. Stephanitis pyrioides feeds on azalea foliage and causes extensive chlorosis, which reduces the aesthetic value and marketability of these plants. Because the use of neonicotinoid insecticides has been dramatically reduced or discontinued, growers and landscape managers are seeking alternative tools or strategies to control this insect. Although insect growth regulators (IGRs) are known for their activity against immature insect stages, their activity against egg hatching has not been addressed thoroughly, specifically against S. pyrioides. Thus, a series of experiments was conducted to understand the ovicidal activity of IGRs using novaluron, azadirachtin, pyriproxyfen, and buprofezin against S. pyrioides. The number of newly emerged young instars was significantly lower when leaves implanted with eggs were sprayed on both sides with novaluron, azadirachtin, and buprofezin compared to nontreated and pyriproxyfen treatments. When IGRs plus adjuvant were applied to the adaxial surface of the leaves, the densities of the newly emerged nymphs were significantly lower under the novaluron treatment compared to the nontreated leaves. However, there was no significant difference in the number of nymphs that emerged in the absence of adjuvant. Furthermore, close monitoring revealed reduced levels of egg hatching in the presence of adjuvant with novaluron compared to its absence. The data show that the survival of S. pyrioides first instars was not affected by exposure to dried IGR residues.

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“…Leaf residue levels dropped rapidly after the first azadirachtin foliar spray, whereas azadirachtin showed a more uniform pattern of persistence in the trunk injected trees. This makes sense as the tree can store azadirachtin within leaf tissue as a metabolite without changing its biological effect [ 28 , 29 ]. Azadirachtin on the surface of the plant, however, breaks down quickly under ultraviolet light [ 30 , 31 ].…”

Section: Discussionmentioning

confidence: 99%

Organic Control of Pear Psylla in Pear with Trunk Injection

Wheeler

Vandervoort

Wise

2020

Insects

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Organic production of pears is challenging in part because OMRI (Organic Materials Review Institute) approved biopesticides are short lived when applied as foliar sprays. Trunk injection is an alternative method of insecticide delivery that may enhance the performance of biopesticides for control of pear psylla. The objective of this study is to compare the efficacy of azadirachtin and abamectin in the control of pear psylla using two different application methods, airblast sprayer and trunk injection. Trunk injections of azadirachtin and abamectin were compared to airblast applications of equal labeled rates on 33-year-old Bartlett Pear trees (Pyrus communis L., var “Bartlett”). The azadirachtin and abamectin trunk injected treatments performed equally or better than the two airblast applications in the control of the pear psylla. The trunk injected trees from the first season provided a moderate level of control into the second season, one year after the injections. This study suggests that trunk injection is a superior delivery system for biopesticides used in organic pear production.

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Systemic applications of azadirachtin in the control of Corythucha ciliata (Say, 1832)(Hemiptera, Tingidae), a pest of Platanus sp.

Cited by 14 publications

References 20 publications

Effect of spinosad, azadirachtin and kaolin on Stephanitis pyri (Fabricius, 1775) (Hemiptera: Tingidae) under laboratory conditions

Effect of spinosad, azadirachtin and kaolin on Stephanitis pyri (Fabricius, 1775) (Hemiptera: Tingidae) under laboratory conditions

Influence of Insect Growth Regulators on Stephanitis pyrioides (Hemiptera: Tingidae) Eggs and Nymphs

Organic Control of Pear Psylla in Pear with Trunk Injection

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