Urbanization is a product of human population growth and industrialization. In industrialized as well as developing countries, urbanization has moved humans away from many arthropod pests, but into intimate associations with others. Since the introduction of synthetic organic insecticides, urban dwellers have fought pests almost exclusively with repeated applications of chemicals. In agricultur...

Abstract Postharvest pests are the biggest problem during storage, so it is necessary to monitor for control measures. This study aims population using two systems of monitoring methods. research was conducted in three regencies where Bulogs rice stored. The namely direct and indirect method. Direct carried out by determining five sample points diagonally, each point measuring 1×1 m then direct...

Data mining algorithms were used to develop models to forecast the outcome of leafroller pest monitoring decisions on ‘Hayward’ kiwifruit crops in New Zealand. Using industry spray diary and pest monitoring data gathered at an orchard block level for compliance purposes, 80 attributes (independent variables) were created in three categories from the spray diary data: (1) individual insecticide ...

In the last few years several European countries undertook closure and environmental remediation of old uranium mining sites. This is the case for Portugal. Due to concerns about public health, environmental radioactivity was recently investigated in a number of counties in the Centre-North of Portugal where the extraction and chemical treatment of uranium ore was carried out, as well as in ref...

The species of pear sucker, also called psylla or psyllid, which are destructive insects belonging to the genus Cacopsylla (Hemiptera: Psyllidae) cause substantial damage tree plantations. Two consecutive years research were conducted on population structure and biological cycle in a small, elderly, unmaintained orchard northern Romania. Of two identified (C. pyri L. C. pyricola Forster), domin...

Keywords: Predator–prey model Impulsive state feedback control Periodic solution Stability Bifurcation a b s t r a c t In the paper, we consider a prey-dependent model with integrated pest management strategies, that is, when the pest population reaches the economic injury level, we use a combination tactics such as biological, cultural, and chemical control tactics such that pests reduce to a ...

The membership of a private golf club in South Carolina's Piedmont Physiographic Region was surveyed to determine perceptions regarding local black fly populations and the effects of these populations on golfing habits. The economic impact of black fly annoyance at this club was estimated to be $27,202. Adult monitoring indicated that the pest species were members of the Simulium jenningsi grou...

An image processing-based variable rate chemical sprayer for disease and pest-infested coconut plantations was designed and evaluated. The manual application of chemicals is considered risky and hazardous to workers, and provides low precision. The designed sprayer consisted of a sprayer frame, motors, a power system, a chemical tank and pump, a crane, a nozzle with a remote monitoring system, ...