نتایج جستجو برای: defoliators
تعداد نتایج: 82 فیلتر نتایج به سال:
We present an overview of many of the mortality agents in western coniferous forests of the United States that are responsible for coarse woody debris recruitment under natural conditions. Patterns and scale of occurrence of mortality agents for the six western USDA Forest Service Regions are examined at both historic and projected-risk time periods. The data indicates that bark beetles have be...
The complex phenomenon of decline in European oak is currently triggered by changing climatic conditions and their consequences like heavy rains, local floods and pest development. Especially, pathogens from Phytophthora genus profit from soil saturation with water. They are alien invasive species, which attack and severely damage fine roots. In drought conditions occurring in the subsequent ye...
Sympatric insect species that do not share sex pheromone components but have a common host and overlapping adult flight periods are potential targets for the development of a combined sex pheromone-based monitoring tool. A system using a single synthetic pheromone blend in a single lure to bait a single trap to monitor two pests simultaneously represents a novel approach. In this study, a combi...
Pine processionary moth (PPM) is one of the most destructive insect defoliators in the Mediterranean for many conifers, causing losses of growth, vitality and eventually the death of trees during outbreaks. There is a growing need for cost-effective monitoring of the temporal and spatial impacts of PPM in forest ecology to better assess outbreak spread patterns and provide guidance on the devel...
Nanoparticles are being utilized in agriculture as fertilizers, pesticides, and agrochemical-carriers. Designed to be biocompatible degradable, biopolymer nanoparticles were developed an alternative metallic nanoparticles, though safe-by-design, polymeric must field-tested prior largescale use. Several field studies conducted observe detrimental effects of on plant growth yield using soybean, G...
Coconut black-headed caterpillar (Opisina arenosella) or BHC is one of the main coconut palm defoliators in many Asian countries, including Malaysia, where it was discovered 2017. Since then, an effort has been made to manage pest by use larval parasitoids, started with a study on effects sucrose diet reproduction, longevity and parasitism naturally occurring parasitoid known as Braco...
George Tamaki and B. A. Butt. Impact of Perillas Bioculatus on the Colorado Potato Beetle and Plant Damage. U.S. Department of Agriculture, Technical Bulletin 1581, 11 pp. 1978 The potential impact of Perillus bioculatus, a pentatomid predator, on the Colorado potato beetle, Leptinotarsa decemlineata, was evaluated by studying the biology, constructing life tables, and determining the feeding p...
The increasing worldwide interest in renewable energy and carbon storage has led to the development of relatively fast solutions obtain wood biomass. cultivation fast-growing tree species short-rotation crops, such as hybrid poplar clones, is one solution, at least temperate areas. Sometimes these monocultures are affected by disturbing factors, including severe insect defoliation, with strong ...
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