5,331 research outputs found
Compatibilidade necessária.
Compatilizar o emprego dos controles quĂmico e biolĂłgico contra pragas em tomateiro Ă© um desafio que se reveste de grande importânica por auxiliar a garantir a sustentabilidade da cultura e favorecer o manejo integrado de insetos. É o caso de uso do parasitoide Trichogramma pretiosum, com ação no combate a Tuta absoluta, brocas pequena e grande, diferentes espĂ©cies de Spodoptera e Helicoverpa armigera, o que demanda a utilização de inseticidas seletivos.bitstream/item/108822/1/Compatibilidade-necessaria.pd
Seletividade de compostos usados em frutiferas temperadas a crisopĂdeos.
SICONBIOL 2011, Resumo 35934
Impacto de agrotoxicos utilizados na cultura do tomateiro a adultos de Trichogramma pretiosum Riley (Hym.: Trichogrammatidae)
O presente trabalho objetivou avaliar o impacto de (g. i. a. L de água)Bacillus thuringiensis (0.05), Chlorantraniliprole (0.04), Etifenoprox (0.13), Fenpropathrin (0.45), Triflumuron (0.144), Azoxystrobin (0.15), Diphenconazole (0.125), tebuconazole (0.2), fluazitop-p-butil (2.5) e metribuzin (2.4) recomendados para o controle de pragas (insetos, doenças e plantas daninhas na cultura do tomateiro.Resumo
Output functions and fractal dimensions in dynamical systems
We present a novel method for the calculation of the fractal dimension of
boundaries in dynamical systems, which is in many cases many orders of
magnitude more efficient than the uncertainty method. We call it the Output
Function Evaluation (OFE) method. The OFE method is based on an efficient
scheme for computing output functions, such as the escape time, on a
one-dimensional portion of the phase space. We show analytically that the OFE
method is much more efficient than the uncertainty method for boundaries with
, where is the dimension of the intersection of the boundary with a
one-dimensional manifold. We apply the OFE method to a scattering system, and
compare it to the uncertainty method. We use the OFE method to study the
behavior of the fractal dimension as the system's dynamics undergoes a
topological transition.Comment: Uses REVTEX; to be published in Phys. Rev. Let
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