Soil, site, irrigation, selection, pruning/thinning, and integrated pest management.
Some plants absorb excess nitrates or oxalates from the soil and store them in plant tissues. Toxicity problems can occur in animals which feed on these plants.
Umatilla County is the apple capital of Oregon and produces ~2200 acres of apples.
The Rogue Valley growers were pioneers in pear production, growing over 24 varieties and setting quality standards in packing pears. The Rogue Valley was the first and largest red pear growing region in the Pacific Northwest in...