effects of water stress and fusarium oxysporum f. sp. lycoperseci (fol) on the growth of tomatoes were studied in a greenhouse experiment. treatments consisted of five levels of water stress (1, 3, 5, 7 and 9 day irrigation intervals). infested soil consisting of 400 chlamydospores g1 of fol and non infested soil were used. experiments arranged in a completely randomized design with 8 replicati...

The effects of infestation by the bird cherry-oat aphid (BCA), (Rhopalosiphum padi L) and the Russian wheat aphid (RWA) (Diuraphis noxia Mordvilko) on callose deposition and transcription of genes related to callose accumulation were investigated in barley (Hordeum vulgare L. cv. Clipper). The BCA, which gives no visible symptoms, induced very limited callose deposition, even after 14 days of i...

A study was conducted to record the histoenzymic changes in the skin of dog infested with different ectoparasites. Infested tissue sections were treated with specific substrates for Succinate (SDH), CytochromeOxidase (CYO), Acid Phosphatase (ACPase) and Alkaline Phosphatase (AKPase) to record the histoenzymic reactivity in the skin of naturally infested dogs with Rhipicephalussanguineus, Ctenoc...

We assessed the efficacy of cultivation as a potential management strategy for codling moth, Cydia pomonella L. (Lepidoptera: Tortricidae), and plum curculio, Conotrachelus nenuphar Herbst (Coleoptera: Curculionidae) in apple orchards. Cocooned codling moth pupae and thinning apples infested with plum curculio larvae were cultivated over in the field. Emergence, percent burial, damage to buried...

Several plant species indirectly defend themselves against herbivory by attracting natural enemies of herbivores by releasing signal chemicals when infested. Previous empirical research suggested that the chemical signals also reflexively induce signal emission by neighboring undamaged plants. We hypothesize that such a reflexively induced signal is a defensive strategy used by undamaged plants...

Preliminary evaluations of an insecticidal paint based on diazinon, chlorpyrifos and pyriproxyfen in a micro-encapsulated formulation (Inesfly 5A IGR) have shown that it has effective and persistent activity against Triatoma infestans inside homes and in areas surrounding homes, in a highly infested region of the Bolivian Chaco. Furthermore, the evaluations have highlighted that the product pre...