Pest Of Plants
Mostrando 13-24 de 200 artigos, teses e dissertações.
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13. Leaf Consumption and Preference to Conyza sp., Conventional and Bt Soybean by Helicoverpa armigera
RESUMO: Lagartas de Helicoverpa armigera apresentam alta capacidade de migração e hábito alimentar polífago. Devido às características dessa praga, hospedeiros alternativos localizados nas proximidades ou interior da lavoura podem dar suporte para sua sobrevivência. O objetivo deste trabalho foi investigar a possibilidade de plantas de buva serem alim
Planta daninha. Publicado em: 04/11/2019
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14. Control of Chrysodeixis includens (Lepidoptera: Noctuidae) using Chin-IA (I-A) isolate as integrate component of management in soybean crops
RESUMO Chrysodeixis includens é uma importante praga da cultura da soja que tem ganhado maior visibilidade na região do Cerrado brasileiro em razão do dano causado. Consumo foliar, período de alimentação e mortalidade de lagartas falsa-medideira foram avaliados em laboratório, assim como seu controle em condições de campo, após a aplicação do ví
Arq. Inst. Biol.. Publicado em: 26/09/2019
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15. Spatial distribution and control levels of Anastrepha spp. (Diptera: Tephritidae) in guava orchards
Abstract: This study aimed to know the patterns of spatial distribution of Anastrepha spp. and establish a criterion for determining the appropriate time for pest control. For this, 90 McPhail traps were used as Sampling Units (SU) divided into three commercial orchards of Novo Milênio guava with a total area of 14 ha. Traps were interspersed between the ro
An. Acad. Bras. Ciênc.. Publicado em: 12/08/2019
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16. Bioassay Technique and Maintenance of Gyropsylla spegazziniana (Lizer, 1719) (Hemiptera: Psylloidea: Aphalaridae) in vitro Conditions
ABSTRACT Gyropsylla spegazziniana is one of the most important pest of yerba mate by sap-sucking that lead to leaves deformation and there are no insecticides registered for its control. The present study describes a new technique to be used in bioassays with the insect. Galls were collected from infested yerba mate plants. In the laboratory, the galls were
Floresta Ambient.. Publicado em: 01/08/2019
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17. Physiological characteristics of citrus plants infested with citrus blackfly
Abstract Aleurocanthus woglumi (Ashby, 1915) is an important agricultural pest that causes yield losses of 20-80% in citrus plants by removing plant nutrients while feeding and allowing the formation of sooty mold. The objective of this study was to evaluate physiological changes in citrus plants in response to A. woglumi infestation under field conditions.
Rev. Bras. entomol.. Publicado em: 13/06/2019
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18. Control potential of Heterorhabditis amazonensis (Rhabditida: Heterorhabditidae) in avocado borer, Stenoma catenifer (Lepidoptera: Elachistidae)
ABSTRACT Stenoma catenifer is considered the main pest of avocado, making impossible to commercialize the infested fruits. This study was conducted with the objective of evaluating the potential of Heterorhabditis amazonensis MC01 in the field control of avocado borer, as well as the nematode release method. Two treatments were tested, namely: release of dea
Rev. Ceres. Publicado em: 06/06/2019
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19. Incidence of Bemisia tabaci Gennadius (Aleyrodidae, Aleyrodinae) in four Atlantic Forest fragments
RESUMO: Bemisia tabaci é conhecida no Brasil desde 1923, relatada em cultivos de algodão, soja, tomate e feijoeiro, promovendo prejuízos econômicos por ser transmissora de viroses. São praticamente inexistentes os trabalhos que analisam sua ocorrência em ambiente florestal. Nesse sentido, o objetivo deste trabalho foi estudar a ocorrência de B. tabaci
Arq. Inst. Biol.. Publicado em: 30/05/2019
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20. 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
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21. Biology and External Morphology of the Immature Stages of Dirphia moderata Bouvier (Lepidoptera: Saturniidae: Hemileucinae) in Anacardium occidentale L.
Resumo O gênero Dirphia Hübner, [1819] apresenta distribuição Neotropical. Esse gênero, além de causar acidentes de interesse na saúde pública, é uma potencial praga desfolhadora de plantas cultivadas, entre elas o cajueiro (Anacardium occidentale L.), cultura de grande importância econômica. Esse estudo descreve a biologia e morfologia externa d
Braz. J. Biol.. Publicado em: 20/05/2019
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22. Host plants for mealybugs (Hemiptera: Pseudococcidae) in grapevine crops
RESUMO As cochonilhas-farinhentas (Hemiptera: Pseudococcidae) são consideradas pragas de importância econômica em cultivos de videira. São altamente polífagas, alimentando-se de plantas hospedeiras de 250 famílias. Objetivou-se identificar plantas hospedeiras de cochonilhas-farinhentas em cultivos de videira, na região do Vale do São Francisco. Foram
Pesqui. Agropecu. Trop.. Publicado em: 13/05/2019
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23. 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
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24. EFFECT OF NOZZLES, APPLICATION RATES, AND ADJUVANTS ON SPRAY DEPOSITION IN WHEAT CROPS
ABSTRACT The use of insecticides is common in pest management in wheat crops but may lead to higher production costs and environmental contamination. Therefore, a more comprehensive and uniform distribution of plant protection products in the desired target is recommended. The objective of this study is to evaluate the effect of different spray nozzles, appl
Eng. Agríc.. Publicado em: 2019-02