Objetivou-se nesse trabalho determinar a sobrevivência de Bursaphelenchus cocophilus em estipes dendezeiros infectados recém cortados e ação do herbicida Metano Arseniato Ácido Monossódico (MSMA) sobre o nematoide. Foram coletadas amostras estipe com sintomas avançados da doença, até quatro meses após erradicação das plantas. Os mortos MSMA foram monitorados para presença B. 90 dias aplicação. persistiu nos por pelo menos 120 corte. O corte plantas infectadas reduz população dendezeiro, mas...

The greenbug Schizaphis graminum (Rond.) (Hemiptera: Aphididae) is one of the main pestinsects wheat (Triticum aestivum, L.). Resistance inducing agents as silicon (Si) and acibenzolar-s-methyl (ASM) can provide some protection against insects diseases. effect Si and/or ASM on development probing behaviour S. in plants was evaluated. Wheat (cultivar Embrapa 22) were treated with (silicic acid at rate 1%) acibenzolar-S-methyl 0.5%. effects these treatments greenbugs analyzed by parameters,...

Zelus pedestris is a generalist predator with wide geographic distribution. This study aimed to examine the biological, behavioral, and reproductive parameters of species, under laboratory conditions. The embryonic period lasted about 10±0.81 days eggs had up 100% viability. It was confirmed 5 nymphal instars duration 39±0.75 87.5% survival rate. cycle completed in 49±1.07 days. mating sequence consisted in: frontal approach between males females; mounting; male's spinning movement over...

Monalonion bondari is an important Theobroma cacao. pest in Brazil and information about their natural predators lacking. Thus, the aim of this study was to record for first time predation M. by Zelus pedestris field confirm predatory activity laboratory. In laboratory, Z. resulted mortality 45% nymphs 40% adults bondari. This preying on can be a potential species used biological control pest.

ABSTRACT This research aimed to evaluate the biological aspects and feeding behavior of Aphis gossypii in watermelon cultivars submitted silicon application. The experiment was conducted at Institute Education, Agriculture Environment Federal University Amazonas, Humaitá, Brazil. experimental design completely randomized a 2×3 factorial (with without silicon; Crimson Sweet, Fairfax Charleston), with ten replications. application silicic acid (1%) carried out directly on substrate using dose...

Objetivou-se, neste trabalho avaliar os efeitos de alguns fungicidas protetores utilizados na cultura pepino sobre o pulgão Aphis gossypii Glover, 1877. Os experimentos foram conduzidos em condições controladas (Temp.: 25±2º C; UR: 70±10% e fotofase 12 h). O delineamento experimental foi inteiramente ao acaso com quatro tratamentos (fungicidas testemunha) 45 repetições, sendo cada parcela composta por um indivíduo. suas respectivas dosagens g i.a.L-1, foram: enxofre 800 PM (1,6), mancozebe...

The cocoa (Theobroma cacao) is the culture of economic interest in southern region Bahia. As a result 1990 crisis, caused by fungus (Moniliophthora perniciosa), crops were devastated, totally transforming previously balanced environment. objective this work was to analyze entomofauna plantation Ilhéus, Bahia, territory affected pathogen, and verify richness abundance insects. A Pitfal trap insects collected area, identifying them at family level then evaluating diversity. Insects belonging...

Trunk injection with Imidacloprid to control the palm aphid
 The injuries caused by aphid, Cerataphis lataniae, on coconut plants may provoke economic losses. Thus, insecticide into tree can provide protection and against this pest. Our goal was evaluate efficiency of imidacloprid trees aphid. experiment carried out at Lemos Maia experimental station, Ceplac, Una, Bahia, Brazil. treatments applied were: 1) 10 mL commercial product Provado® 200 SC (2 g i.a imidacloprid) in stipe; 2) 20...

Endotherapy is a tactic for phytosanitary products application to trees and palm. The goal of this study was verify the efficiency trunk injections in cashew control whitefly (Aleurodicus cocois) (Curtis, 1846) (Hemiptera: Aleyrodidae). To test technology were used 17 with one or more. applied just plants two more trunks. Two doses acephate tested. For each centimeter diameter 5.4 g 0.25 active ingredient. Immediately before insecticide at 1, 6, 9 16 months later, 12 mature leaves per plant...

Weevil is one of the main pests stored corn. The adults feed on intact and broken seeds or bran, while larvae develop by feeding inside seeds, resulting in a reduction weight physiological quality. objective this study was to evaluate effects Sitophilus zeamais infestation corn during storage. Corn were infested using insect densities: 0, 36, 72, 108, 144 individuals per 240 g seeds. placed individualized plastic containers covered with voile fabric. for 60 days under laboratory conditions...

Endotherapy is a technique of injection or infusion phytosanitary products inside the trunk trees palm trees, which are subsequently translocated through plant internal vascular tissues. There few studies about this science in Brazilian academic world. Thus, study aims to review topic with emphasis on reporting successful experiences different countries. A significant number papers shows advantages using infusions and injections plants control pests diseases, when compared traditional...

Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) é uma espécie de inseto diminuto, que se alimenta da seiva, transmissor doenças plantas e encontra-se amplamente distribuído pelo mundo alimentando-se diferentes culturas. O emprego inseticidas pode ser alternativa para o controle deste inseto-praga. Sendo assim objetivou-se, neste trabalho, avaliar a mortalidade quando expostos ao extrato Artemisia annua , Piper aduncum Petiveria alliacea, em condições laboratório. Para produção dos...

Os mais importantes polinizadores do dendezeiro são Elaeidobius subvittatus e kamerunicus (Coleoptera: Curculionidae). Assim, deve-se buscar metodologias para o manejo integrado de pragas que preservem esses organismos benéficos. Por isso, nessa pesquisa objetivou-se verificar em efeito injeções abamectina ou imidacloprido sobre a incidência besouros polinizadores. O estudo foi desenvolvido na Estação Experimental Lemos Maia, Ceplac Una, no estado da Bahia utilizando-se dendezeiros com 12...

The cotton aphid is one of the main watermelon crop pests and may cause a reduction in productivity due to suction sap, transmission viruses, decreased photosynthetic capacity. objective this research was evaluate feeding preference Aphis gossypii biometric aspects cultivar plants submitted silicon application. experiment conducted at Institute Education, Agriculture, Environment Federal University Amazonas, Humaitá, Brazil. A randomized complete block design used for testing with choice...

Insect attack during storage is one of the main causes losses in maize grain production. The purpose this research was to investigate insecticidal action potential nettle and spiked pepper powder on weevils (Sitophilus zeamais) corn grains. experiment carried out laboratory, with evaluation dry leaves (Urtica urens L.) (Piper aduncum at 3% grains infested 0, 8, 16 24 individuals 80 g A completely randomized design used a 4x3 factorial scheme (four insect densities three treatments powders),...