A team of researchers reviewed the status of mitochondrial DNA as a molecular marker in insect ecology studies, given recent evidence that mitochondrial DNA may be more complicated than once thought.
Releasing millions of sterile insects to interfere with a wild pest population won't work if irradiating the insects also hinders their flight capacity. A new study shows this may be the case with navel orangeworm moths (Amyelois transitella), and further fine-tuning will be necessary to build a successful sterile insect technique operation to manage the pest.
In search of a simple, cost-effective way to maintain laboratory mosquito colonies, biologists at a mosquito control district in Florida have turned to food-grade frozen animal blood found at specialty grocery stores. They share the success of their new method for other cash-strapped mosquito-management operations in the open-access Journal of Insect Science.
Researchers studying hydrocarbons in insect cuticles typically avoid specimens preserved in ethanol, for fear the solvent may interfere with chemical analysis. A new study, however, finds ethanol has little effect—at least in the case of one wasp species tested—and opens the possibility that ethanol-preserved insects can indeed be used for the analysis of cuticular chemical compounds.