Interaction between Castor Bean oil and Jatropha oil to Control the Brassica Aphids
Ana Beatriz Mamedes Piffer *
Agricultural Entomology and Acarology Laboratory, Federal Institute of Education Science and Technology of Espírito Santo - Campus Itapina, Colatina, Brazil.
Anderson Mathias Holtz
Agricultural Entomology and Acarology Laboratory, Federal Institute of Education Science and Technology of Espírito Santo - Campus Itapina, Colatina, Brazil.
Jéssica Mayara Coffler Botti
Department of Entomology, Federal University of Viçosa, Viçosa, Brazil.
Jose Romário de Carvalho
School Management, Secretary of State for Education of Espírito Santo, Guaçuí, Brazil.
Ronilda Lana Aguiar
Agricultural Entomology and Acarology Laboratory, Federal Institute of Education Science and Technology of Espírito Santo - Campus Itapina, Colatina, Brazil.
Amanda Gonçalves Alves
Agricultural Entomology and Acarology Laboratory, Federal Institute of Education Science and Technology of Espírito Santo - Campus Itapina, Colatina, Brazil.
Ana Clara Paiva Gomides
Agricultural Entomology and Acarology Laboratory, Federal Institute of Education Science and Technology of Espírito Santo - Campus Itapina, Colatina, Brazil.
Johnatan Jair de Paula Marchiori
Environmental Sciences, Federal Rural University of Rio de Janeiro, Institute of Forests, Seropédica, Brazil.
Bruna de Oliveira Magnani
Agricultural Entomology and Acarology Laboratory, Federal Institute of Education Science and Technology of Espírito Santo - Campus Itapina, Colatina, Brazil.
Evellyn Zuqui Bolsoni
Agricultural Entomology and Acarology Laboratory, Federal Institute of Education Science and Technology of Espírito Santo - Campus Itapina, Colatina, Brazil.
Patricia Soares Furno Fontes
Agricultural Entomology and Acarology Laboratory, Federal Institute of Education Science and Technology of Espírito Santo - Campus Itapina, Colatina, Brazil.
*Author to whom correspondence should be addressed.
Abstract
The aim of this work was to study the effect of the interaction between castor bean oil (Ricinus communis) and jatropha oil (Jatropha curcas) on the aphid, Myzus persicae. The experiment was realized at the Institute Federal of Espírito Santo in Brazil. Tests were conducted in a completely randomized design, with 11 treatments and 10 repetitions, arranged in a factorial arrangement of 11 (interactions between oils) x 2 (application forms). The concentration used in this test was 3 %. Treatment interaction ratios were 0-100; 10-90; 20-80; 30 -70; 40-60; 50-50; 60-40; 70-30; 80-20; 90-10; 100-0 % jatropha and castor bean oil, respectively. Tests of direct and indirect application were performed. The evaluations were performed 24, 48, and 72 hours after the applications. For both forms of application, there were significant mortalities. Mortalities greater than 70 % were observed when the interaction contained more significant amounts of jatropha than castor bean. However, a negative interaction was observed between concentrations with similar proportions. In conclusion, for both application forms, the interaction between jatropha and castor bean oils effectively reduce the population of M. persicae.
Keywords: Alternative control, Brazil, Myzus persicae, Jatropha curcas, Ricinus communis