Publications by authors named "N J Ferla"

The redox homeostasis and photosynthetic pigments changes vary with Tetranychus ludeni infestation, with longer-cycle genotypes showing greater tolerance and efficiency in antioxidant defense. Infestations of Tetranychus ludeni Zacher (Tetranychidae) have been frequently observed in soybean plants. In this context, understanding the oscillation of redox homeostasis is crucial for detecting and assessing the stress levels caused in the plants by these organisms.

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In this work we reported injuries caused by the spider mite Oligonychus yothersi on Vitis vinifera leaves and we also investigate the sex ratio of this species under laboratory conditions. To access the aspects regarding reproduction, females were placed individually in arenas made of V. vinifera leaves to oviposit and all progeny were mounted on slides when they reached adulthood to confirm the offspring sex.

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Article Synopsis
  • The study aimed to assess the diversity and distribution of mite species on native and cultivated açaí palms in two Pará municipalities, focusing on seasonal variations between dry and rainy seasons.
  • A total of 2069 mites representing 28 families were identified, with Phytoseiidae being the most common; the rainy season yielded a higher number of samples compared to the dry season, despite greater species richness being recorded during the dry period.
  • Results indicated that cultivated açaí palms had a higher abundance of mites, while native palms displayed slightly more species richness, highlighting the Amazon's potential for biological control applications through predatory mites.
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This paper describes two new species of the genus Ologamasus (Acari: Ologamasidae), namely Ologamasus margaridae n. sp. and Ologamasus tuberculatus n.

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The objective of this study was to evaluate the diversity and population dynamics of mites in soybean crops with different cultivars and management practices. The study was conducted in two soybean production fields in the municipalities of Mato Queimado (L1) and Três de Maio (L2), Rio Grande do Sul state, Brazil. Two transgenic cultivars were used, and insecticide applications varied among treatments.

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