Pest Resistance
Mostrando 1-12 de 119 artigos, teses e dissertações.
-
1. Leaf consumption and oviposition of Palpita forficifera (Lepidoptera: Crambidae) on different olive cultivars
ABSTRACT The incidence of the olive caterpillar Palpita forficifera is among the main phytosanitary problems in olive groves in Brazil, and the use of resistant cultivars can be a useful tool to be incorporated into an integrated management strategy of this pest. The objective of this study was to evaluate the consumption and oviposition of P. forficifera on
Revista Ceres. Publicado em: 2022
-
2. Resistance of maize landraces from Brazil to fall armyworm (Lepidoptera: Noctuidae) in the winter and summer seasons
ABSTRACT The fall armyworm (Spodoptera frugiperda) is a major maize (Zea mays L.) pest in Brazil, whose larvae cause losses from plant emergence to harvesting stage. This pest has been controlled almost exclusively with chemical insecticides and Bt plants (transgenics); however, resistance evolution has been detected to these two control tactics. Therefore,
Bragantia. Publicado em: 2020-09
-
3. Effects of entomopathogenic nematodes Steinernema carpocapsae and Heterorhabditis bacteriophora on the fitness of a Vip3A resistant subpopulation of Heliothis virescens (Noctuidae: Lepidoptera)
ABSTRACT The widespread use of transgenic plants imposes selection pressure on insect pest populations to develop insecticide resistance. Evaluation of effectiveness of resistance management strategies is very important in resistance management programs. Resistance management to insecticides is widely believed to depend in part on associated fitness costs. F
Bragantia. Publicado em: 2020-06
-
4. Silicon application as an auxiliary method to control diamondback moth in cabbage plants
RESUMO Entre as estratégias de Manejo Integrado de Pragas (MIP) estão os fatores que induzem a resistência da planta hospedeira. A adubação mineral com silício pode aumentar a resistência de plantas ao ataque de pragas. Este trabalho teve como objetivo avaliar o potencial da aplicação de silício no controle da traça-das-crucíferas (TDC), Plutella
Hortic. Bras.. Publicado em: 09/12/2019
-
5. Silicon as resistance inducer in to control black aphid Aphis craccivora Koch, 1854 in Phaseolus lunatus lima beans
RESUMO São poucos os registros no Brasil de insetos associados à cultura da fava; entre eles, destaca-se o pulgão preto Aphis craccivora Koch, 1854. O objetivo deste estudo foi avaliar os efeitos da aplicação de silício na indução de resistência de plantas de feijão-fava Phaseolus lunatus a esse inseto. O experimento foi conduzido no Laboratório d
Arq. Inst. Biol.. Publicado em: 28/11/2019
-
6. Insecticide resistance and control failure likelihood among populations of the boll weevil (Anthonomus grandis) from Mato Grosso (Brazil)
ABSTRACT. The cotton producers from southern Mato Grosso are currently experiencing control failure with the use of the use of insecticides against the cotton boll weevil Anthonomus grandis Boheman, the main pest species of this commodity. Therefore, the present study was designed to survey insecticide resistance and the associated likelihood of control fail
Acta Sci., Agron.. Publicado em: 23/09/2019
-
7. Diversity and abundance of green lacewings (Neuroptera: Chrysopidae) in a Conilon coffee plantation in Acre, Brazil
RESUMO Coffea canephora (café Conilon) tem grande importância econômica para o estado do Acre, porém o uso de inseticidas nessa cultura tem aumentado consideravelmente nos últimos anos. A fim de prospectar espécies de Chrysopidae (Neuroptera) com potencial para uso em programas de controle biológico de pragas dessa cultura, nós amostramos crisopídeo
Acta Amaz.. Publicado em: 12/08/2019
-
8. Insecticidal activity of essential oils in controlling fall armyworm, Spodoptera frugiperda
RESUMO: A lagarta-do-cartucho, Spodoptera frugiperda (Lepdoptera: Noctuidae), é uma das principais pragas na cultura do milho e nos últimos anos vem desenvolvendo resistência a produtos químicos e à tecnologia Bt. Métodos alternativos de controle, como o emprego de óleos essenciais, são um passo importante na implementação de estratégias de manejo
Arq. Inst. Biol.. Publicado em: 29/07/2019
-
9. Common bean resistance expression to whitefly in winter and rainy seasons in Brazil
ABSTRACT: Whitefly Bemisia tabaci (Gennadius) biotype B is the major pest of common bean (Phaseolus vulgaris L.) in Brazil and other countries. Host plant resistance is one of the cornerstones of Integrated Pest Management (IPM), and assessment of cultivars for insect resistance is fundamental to provide farmers options for pest control. This study evaluated
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/05/2019
-
10. Resistance of processing tomato genotypes to leafminer (Tuta absoluta)
RESUMO A cultura do tomateiro apresenta vários entraves que dificultam o seu cultivo, com destaque para a traça-do-tomateiro, Tuta absoluta (Lep.: Gelechiidae). Para reduzir os danos causados por essa praga, o desenvolvimento de cultivares resistentes é uma das principais alternativas. Objetivou-se com este trabalho selecionar genótipos de tomateiro com
Hortic. Bras.. Publicado em: 15/04/2019
-
11. Characterization of diploid Arachis interspecific hybrids for pest resistance
ABSTRACT In Brazil, the thrips (Enneothrips flavens Moulton) and rednecked peanutworm (Stegasta bosquella Chambers) are considered key pests for the peanut crop. Wild species show resistance to both of these pests, and can be used in breeding programs. The production of the sterile interspecific hybrids is necessary, which could be colchicine treated to get
Bragantia. Publicado em: 2019-03
-
12. A new methodology for large-scale screening sugarcane resistance to Mahanarva Fimbriolata (Hemiptera: Cercopidae)
ABSTRACT The sugarcane spittlebug, Mahanarva fimbriolata (Walker) (Hemiptera: Cercopidae) is an economically important pest of sugarcane in Brazil. The purpose of this study was to develop and validate a greenhouse methodology to screen large sugarcane populations for resistance to spittlebug Mahanarva fimbriolata. A resistant and a susceptible genotype (H.
Bragantia. Publicado em: 25/10/2018