Humboldt-Del Norte

Tables of Douglas-fir (Pseudotsuga menziesii) symptoms, possible causes, and reference photos to aid in tree disease diagnosis.

Fieldbrook 4-H Club information, meeting times, projects offered, officer team

The Fall Pasture Workshop was designed for both conventional and organic producers. Regional experts assisted attendees in managing fertilization, determining grazing capacities and controlling pasture weeds. Current research on greenhouse gasses and effects of Aleutian Geese on pasture production was also…

Outlines the steps for enrolling in 4-H in Humboldt County

Summary of Heterobasidion Root Disease (Heterobasidion occidentale and Heterobasidion irregulare), trees affected by it, management strategies, along with pests and pathogens with similar display of symptoms on trees.

Carlotta 4-H Club information, meeting times, projects offered, officer team

Research is being conducted on the effects of Aleutian Geese on local pastures. This program is funded by a grant from Western Sustainable Agriculture Research Education (WSARE) in conjunction with the Humboldt State University Rangeland Resources Department and three local ranchers.

How-to Guide for Collecting Tanoak and CA Bay Laurel Samples for Lab Analysis SOD Symptoms on Tanoak and CA Bay Laurel, Guide to Common SOD Look-Alikes, SOD and Fire, SOD best management practices.

Summary of Green Spruce Aphid (Elatobium abietinum), trees affected by it, management strategies, along with pests and pathogens with similar display of symptoms on trees.

Invasive plants are one of the greatest threats to croplands, rangelands, aquatic areas, and wildlands in the United States; they degrade the productivity and biological diversity of all ecosystems. Below are the sixteen most harmful weeds in Humboldt County.