Readers respond to “Farming at the edge”

Also in this issue:

Effect of malathion-bait sprays on biological control of insect pests of olive, citrus, and walnut

Veterinary medicine: Mandates and missions for the 21st century

Science briefs

Growth reflects society's changing views of animals

Growers strive to reduce selenium discharges

Innovative strategies reduce selenium in Grasslands drainage

Subsurface drainage systems have little impact on water tables, salinity of clay soils

Beneficial insects move from flowering plants to nearby crops

Can cover crops reduce leafhopper abundance in vineyards?

Pyrithiobac sodium controls nightshade without long-term effect on cotton

Curly top virus found in perennial shrubs in foothills