Blueberry growers in Maine attend annual Cooperative Extension presentations given by university faculty members. These presentations cover topics, such as, how to prevent plant disease and monitor for insect pests. In 2012, in order to make the sessions more interactive and promote learning, clicker questions and peer discussion were incorporated into the presentations. Similar to what has bee...

BACKGROUND Growers have enthusiastically embraced crops genetically modified to express Bacillus thuringiensis (Bt) proteins for insect control because they provide excellent protection from key damaging insect pests around the world. Bt crops also offer superior environmental and health benefits while increasing grower income. However, insect resistance development is an important concern for ...

case of a florist with rhinoconjunctivitis and asthma due to sensitisation to Freesia, which is from the same family as the gladiolus. Ordoqui 6 reported a case of a florist, who has worked with plants for 18 years. He refers respiratory symptoms upon exposure to gladiolus and carnation, with positive prick test to these plants, specific IgE by ELISA on patient serum, and positive bronchial cha...

I investigate the role of regulation and factor prices in the rapid, widespread adoption of mechanical harvesting technology by Brazilian sugarcane growers. I use workerand establishment-level data to test the effect of regulation using complementary regression discontinuity and difference-in-differences approaches. I find that regulation is, at best, a partial explanation, accounting for no mo...