Publications by authors named "Isaac L Esquivel"
The sorghum ( [L.]) agroecosystem of North America provided an opportunity to evaluate agroecosystem response to an invading insect herbivore, (Theobald) (sorghum aphid) (previously published as Zehntner) (Hemiptera: Aphididae) onto a widely planted crop that experiences a range of agro-landscape and weather conditions. Initial sorghum risk assessments after 's invasion in the mid-2010s provided forecasts of range expansion and annual migration, which were based on aphid life history, extent of sorghum cultivation and susceptibility to , and weather (aphid-plant-weather [APW] risk scenario).
View Article and Find Full Text PDFThe cotton agroecosystem is one of the most intensely managed, economically and culturally important fiber crops worldwide, including in the United States of America (U.S.), China, India, Pakistan, and Brazil.
View Article and Find Full Text PDFThe cotton agroecosystem is one of the most intensely managed, economically and culturally important cropping systems worldwide. Native pollinators are essential in providing pollination services to a diverse array of crops, including those which have the ability to self-pollinate. Cotton, which is autogamous, can potentially benefit from insect-mediated pollination services provided by native bees within the agroecosystem.
View Article and Find Full Text PDFArticle Synopsis
- Average field sizes in the U.S. have approximately doubled since the 1980s, while overall cropland area remains constant, impacting pest control dynamics.
- A study over two years found that densities of cotton pests, such as the cotton fleahopper and verde plant bug, decreased significantly as one moved from the field edge into the field interior.
- The findings suggest that pest concentrations are highest near edges, particularly where semi-natural habitats are present, indicating that pest management efforts should prioritize these edges for more effective monitoring and decision-making.