methylene blue is widely used in various industrial branches. due to insufficient treatment, its occurrence in wastewater is frequently detected, which may result in serious environment problems to aquatic organisms. hydroponic experiments were conducted with rice seedlings (oryza sativa l. cv. xzx 45) exposed to methylene blue to determine the effective concentration using relative growth rate...

In this study efficacy of essential and fixed oil Laurus nobilis L., on controlling Aphis fabae Scopoli that grows Vicia faba L. (Fabaceae) has been studied by experiments set up in the laboratories Çukurova University Biology Plant Protection Departments 2016-2017. Fixed oils had previously found to be effective aphids according death rate Abbott test values, but they also phytotoxic effects p...

Abstract: A germination test is required by Brazilian standards for seed commercialization. The use of an adequate methodology that expresses the real physiological quality seeds and minimizes possible phytotoxicity chemicals important production chain. In this context, aim was to evaluate validate paper roll plus vermiculite (PR+V) in corn seeds. Two hybrids, one sensitive other tolerant treat...

Hormetic treatments using high-intensity, pulsed polychromatic light (HIPPL) and low-intensity UV-C (LIUV) can control Botrytis cinerea on lettuce (Lactuca sativa) in a controlled environment. For the cv. Temira, 48 pulses of HIPPL significantly reduced mean disease progression (26%), while 0.64 kJ/m2 LIUV gave reductions 27%. No or treatment for Amica. A 0.98 dose 24 HIPPL, however, progressio...

Allelopathy has been hypothesized to play a role in exotic plant invasions, and study of this process can improve our understanding of how direct and indirect plant interactions influence plant community organization and ecosystem functioning. However, allelopathic effects can be highly conditional. For example allelopathic effects demonstrated in vivo can be difficult to demonstrate in field s...

Olive-mill wastewater (OMW), an effluent of olive oil extraction process, is annually produced in huge amounts in olive growing areas. An interesting option for its disposal is the spreading on agricultural land, provided that phytotoxic effects are neutralized. The objective of the present investigation was to evaluate the potential of an enzyme-based treatment in removing OMW phytotoxicity. T...

(1) Global movement of propagative plant material is a major pathway for introduction of Bemisia tabaci (Hemiptera: Aleyrodidae) into poinsettia greenhouses. Starting a poinsettia crop with high pest numbers disrupts otherwise successful biological control programs and widespread resistance of B. tabaci against pesticides is limiting growers' options to control this pest; (2) This study investi...

To identify a post-plant nematicide to control root lesion nematode [RLN (Pratylenchus penetrans)] in red raspberry (Rubus idaeus), a number of nematicides was tested in soil-only and plant-based experiments. In soil-only experiments, soil naturally infested with RLN was drenched with the nematicides and nematode survival was assessed 7 and 14 days after treatment. Fosthiazate and oxamyl reduce...