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

An all-order proof of the equivalence between Gribov's no-pole and Zwanziger's horizon conditions

The quantization of non-Abelian gauge theories is known to be plagued by Gribov copies. Typical examples are the copies related to zero modes of the Faddeev-Popov operator, which give rise to singularities in the ghost propagator. In this work we present an exact and compact expression for the ghost propagator as a function of external gauge fields, in SU(N) Yang-Mills theory in the Landau gauge. It is shown, to all orders, that the condition for the ghost propagator not to have a pole, the so-called Gribov's no-pole condition, can be implemented by demanding a nonvanishing expectation value for a functional of the gauge fields that turns out to be Zwanziger's horizon function. The action allowing to implement this condition is the Gribov-Zwanziger action. This establishes in a precise way the equivalence between Gribov's no-pole condition and Zwanziger's horizon condition.Comment: 11 pages, typos corrected, version accepted for publication in Phys. Lett.