, the Asian tiger mosquito, is an important nuisance mosquito species and known vector of arboviruses such as dengue, chikungunya, and Zika. Despite their cosmopolitan distribution around the world, there is a paucity of accurate predictive models based on rates of development at different temperatures (degree-day models). These types of models can benefit mosquito control districts by predicting when to target early-season larval development, when populations are likely at their lowest levels. In this study, we determined the effect of temperature and nutrient levels on the development rates and male and female adult size of 2 populations: one field-collected, the other a 20-year-old lab colony. We found relatively small differences in the effects of temperature and nutrient levels between populations. Data from these studies were used to create a predictive degree-day model, which when tested in New Jersey correlated with field observations of early-season field populations of . While other important factors, such as day length and fluctuating temperatures, should be evaluated, data from this study will contribute to the development of operational strategies to effectively time early-season larviciding against this species.
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http://dx.doi.org/10.2987/19-6841.1 | DOI Listing |
Insects
November 2024
Commodity Protection and Quality Unit, San Joaquin Valley Agricultural Sciences Center, United States Department of Agriculture, Agriculture Research Service, Parlier, CA 93648, USA.
The navel orangeworm, , is the principal pest of pistachio and almond in California. The timing of the insecticide application is challenging because there is no model that predicts when pistachio is vulnerable to infestation. Sixteen years of pistachio flight data from Madera and Fresno counties (541,892 adults) were analyzed to determine if there was a consistent starting point each year for flights that overlap pistachio vulnerability.
View Article and Find Full Text PDFJ Nematol
March 2024
Agriculture and Agri-Food Canada, Summerland Research and Development Centre, Summerland, British Columbia.
Sci Rep
November 2024
Earth and Environmental Sciences, The City University of New York - Graduate Center, New York, USA.
The remnants of Hurricane Ida caused major damage and death in the United States on September 1st, 2021, and 11 people drowned in flooded basement apartments within New York City (NYC). It was catastrophic because the maximum hourly precipitation intensity, recorded as 3.47 inches (88.
View Article and Find Full Text PDFJ Econ Entomol
November 2024
USDA-ARS Temperate Tree Fruit and Vegetable Research Unit, Wapato, WA 98951, USA.
The brown marmorated stinkbug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), is a polyphagous invasive insect found in the eastern United States in 1998 but became a major agricultural pest in 2010. Environmental temperatures regulate the location of invasive species establishment in new locations. To determine those areas where an invasive species might establish it is essential to understand the metabolic response of all life stages to temperature.
View Article and Find Full Text PDFHeliyon
October 2024
Mathematical Science Department, University of Malawi, Malawi.
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