In a study on three commonly cited natural spider repellents, both chestnut and peppermint oil showed apparent repellent effects on two species of spider but not on a third. Meanwhile, lemon oil did not have a significant effect on any of the three species included in the study.
A study by entomologists in Italy found that the abundance of bark- and wood-boring beetles outside their native range but still within the same country is correlated with levels of trade at nearby sea ports, suggesting domestic sea transportation plays a role in insects' intra-country range expansion.
Researchers at USDA's Agricultural Research Service identified a chemical that enhances capture of the invasive brown marmorated stink bug (Halyomorpha halys) in pheromone traps
The Invasive Brown Marmorated Stink Bug is a major pest; USDA researchers hope to breed a resistant soybean.