I have been several calls in regards to leaffooted plant bug (Leptoglossus clypealis and L. occidentalis). Damage has been reported from various areas of the county, with significant damage observed within some blocks.
Leaffoted plant bugs get their name from the leaflike features found on the back legs of the large nymphs and adults. Adults are about 1 inch long and have a yellow or white zigzag line across their back. Females lay eggs in strands which are often found on the sides of almonds or pistachios. Read More
Written By: Carolyn DeBuse, Former UCCE Farm Adviser, Solano and Yolo Counties
Managing gophers and ground squirrels is a year-round task. Gophers can be controlled with most methods throughout the year but squirrel control methods change with the seasons depending on the squirrel biology. This article will outline the control methods but also inform you about some outstanding online resources that are useful to learn new information, understand seasonal cycles, and determine the best control methods to use. Read More
Figure 1: Meal moth (Pyralis farinalis) commonly found in navel orangeworm pheromone trap.
I have been hearing multiple reports of high counts of Navel Orangeworm (NOW) moths trapped with the new Suterra Biolure. We have placed our traps and have had high trap counts as well. In our liners, however, we have found two different moths – one being NOW (Amyelois transitella) and the other being a meal moth (Pyralis farinalis). Both of these moths are within the same family (Pyralidae) and can be confused. Read More
This is the first year that the UC Early Season Protocol (UC ESP) model for predicting July almond leaf nitrogen (N) levels from April leaf samples, has been available for public use. This model was developed by UC Davis researchers led by Dr. Patrick Brown. Based on calls to several reputable ag labs and questions from PCAs, there seems to be some uncertainty about availability and use of the new model. Where is the model? How does is it used? Who should use it to develop the July leaf N prediction and what should be done with the results? Does an analytical lab run it for growers and PCA/CCAs? If the lab doesn’t do it, should/can the grower or their PCA/CCA to do it, and, if so, where is the model? This blog post is intended to answer these questions and help interested almond industry members use the UC ESP model. Read More