Lignin-based compounds for the microencapsulation of neem extract for the control of Diabrotica speciosa (Coleoptera: Chrysomelidae) larvae on maize roots
| Autor: | Luciano Nogueira, Arlindo Leal Boiça Júnior, Moacir Rossi Forim, Renato Franco Oliveira de Moraes, Eduardo Neves Costa, Eveline Soares Costa |
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| Přispěvatelé: | Fundacao Univ Fed Grande Dourados, Universidade Estadual Paulista (Unesp), Universidade Federal de São Carlos (UFSCar), Inst Fed Educ Ciencia & Tecnol Goiano |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Sugarcane bagasse Plant Science 01 natural sciences chemistry.chemical_compound Lignin Larva Azadirachta indica biology Neem extract fungi food and beverages Azadirachta biology.organism_classification Pest management Diabrotica speciosa Microcapsules 010602 entomology Horticulture Plant development chemistry Insect Science Botanical insecticide Soil pest PEST analysis Bagasse 010606 plant biology & botany |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1876-7184 0334-2123 |
| DOI: | 10.1007/s12600-021-00915-x |
| Popis: | Made available in DSpace on 2021-06-26T04:48:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-04-08 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Diabrotica speciosa (Germar) larvae have been considered one of the major subterranean pests of several crops, including maize (Zea mays L) in South America. Currently, there are limited options for managing this pest in maize, and botanical insecticides are a potential option that could provide additional modes of action against D. speciosa. One of the major barriers to using botanical insecticides is their instability due to their rapid degradation in the environment. Lignin extracted from sugarcane bagasse, a byproduct which is largely produced in the Brazilian sugarcane industries, was tested for encapsulating neem (Azadirachta indica A. Juss) extract with and without additional additives to provide stability in some formulations. Thus, this research aimed to evaluate the effect of neem extract in different microencapsulated formulations and doses to control D. speciosa. In addition, effects on maize plant development were assayed. In low-dose neem testing, the microencapsulated formulations with the additives Tinogard (R), Silicone, Styleze (R) and Styleze (R) + Tinogard (R) were the most efficient in controlling D. speciosa larvae. Most of the formulations delayed the larva to adult period, which could lead to fewer generations per year. Moreover, LigN + silicone caused reduction in the weight of adults. All additives were not toxic to D. speciosa. Overall, the low doses of neem had no negative effect on the development of maize plants. In high-dose neem testing all the insects died, but the high-doses were toxic to plants. The aforementioned low-dose formulations seem a promising tool for controlling D. speciosa in maize fields. Fundacao Univ Fed Grande Dourados, Fac Ciencias Agr, BR-79804970 Dourados, MS, Brazil Univ Estadual Paulista, Dept Ciencias Prod Agr, Fac Ciencias Agr & Vet, Campus Jaboticabal, BR-14884900 Jaboticabal, SP, Brazil Univ Fed Sao Carlos UFSCar, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil Inst Fed Educ Ciencia & Tecnol Goiano, BR-73900000 Posse, Go, Brazil Univ Estadual Paulista, Dept Ciencias Prod Agr, Fac Ciencias Agr & Vet, Campus Jaboticabal, BR-14884900 Jaboticabal, SP, Brazil CNPq: 140589/2013-9 FAPESP: 2011/11.860-5 FAPESP: 2011/00.970-4 |
| Databáze: | OpenAIRE |
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