Monthly Archives: August 2017

Navel Orangeworm in Walnuts 2017 – Stay Alert

Posted on August 23 2017 by Emily Symmes

Although many producers and their crop advisers are reporting average to lower numbers of NOW based on trapping so far this season in almonds (harvest damage remains to be seen), bear in mind some of the issues that can lead to NOW build-up and damage as walnuts approach harvest. Keep reading for management tips to keep in mind as walnut hull split approaches. Continue reading →

Ethephon for Earlier Harvest

Posted on August 7 2017 by Sacramento Valley Orchards

Ethephon, also known as Ethrel®, is an ethylene-based plant growth regulator applied at walnut maturity, or shortly thereafter, which accelerates hull cracking and separation from the shell. This advances walnut harvest by four to seven days, depending on the season and variety, and nut value is increased by lighter kernel color and possibly less insect damage. Continue reading →