Hemp growers need to monitor their fields regularly for adult beet leafhoppers, which can transmit the beet curly top virus. Although data for hemp is scarce, management techniques used to protect other crops are advised.
Some publications and field guides, such as the popular Shrubs to Know in Pacific Northwest Forests and Trees to Know in Oregon and Washington, are available to purchase.
How drought affects trees is complex. Drought-stressed trees become susceptible to insects and diseases that are naturally present but typically at low levels. Here are steps to take to identify what's ailing a tree.