Program Description
The Insect Management and Entomology program conducts applied research in insect population dynamics, monitoring, economic thresholds, insecticide efficacy and other management strategies. Recent research includes work in almonds, grapes, stone fruit, and row crops such as cantaloupes, onions, and processing tomatoes. Current issues in insect management are the ramifications of the Food Quality Protection Act, the continuing development of genetic resistance to pesticides, the need for developing additional reduced risk and environmentally friendly management strategies and materials and the continuing introduction of exotic pests such as red imported fire ant and glassy-winged sharpshooter. Phenology Indicators for Pests at Selected Locations is a tabular worksheet showing the flight starts and degree-day accumulations for several insect pests of almonds, tree fruit and grapes at locations where I have pheromone monitoring traps. These degree-day data are updated usually once a week through most of the growing season. This information is for growers and Pest Control advisors to use as a comparison with data they are collecting in their orchards or vineyards. This information is NOT to be used for making management decisions for your specific location. Temperatures can vary significantly over fairly short distances and degree-day accumulations are dependent on the biofixes of the insects in your specific site, which might be quite different from these data.
Download Files:
2006 Files
Phenology Flights - August 24, 2006
OFM Flights - August 24, 2006
OLR Flights - August 24, 2006
PTB Flights - August 24, 2006
SJS Flights - August 24, 2006
NOW - Flights August 24, 2006
CM Flights - August 24, 2006
OBLR Flights - August 24, 2006
KAC Average vs. 2006 Temperature
2005 Files
Phenology Flights- November 2, 2005
CM Flights-October 11, 2005
OFM Flights- October 11, 2005
OLR Flights-November 2, 2005
PTB Flights-November 2, 2005
SJS Flights-November 2, 2005
KAC Average vs. 2005 Temperature
2004 Files
Phenology Indicator - October 26, 2004
OLR Flights-October 26, 2004
OFM Flights-October 26, 2004
SJS Flights-October 26, 2004
CM Flights-October 26, 2004
NOW Flights-October 26, 2004
PTB Flights-October 26, 2004
Row Crop Pest Flights-August 11, 2004
KAC Average vs. 2004 Temperature
Historical Data
Flight Start Dates
The dates at which the various flights begin among insects can vary significantly from year to year. The primary variable that influences the timing of the flight is the threshold temperatures for both development of the insect and function of the flight muscles. These may be the same but not necessarily so. In the case of the insects we monitor in tree crops abnormally warm or cool spells can change the flight dates significantly. The following charts illustrate the variation of flight starts using pheromone trap data from Kearney Ag Center. This data encompasses 18 years of trapping various pest insects in a mixed fruit orchard at KAC. What is shown is the earliest date, the latest date and the average date on which each flight begins. Use this information to get a feel for when to expect each flight and when to be sure you have traps installed in your orchard.
Flight Start Table
Flight Start Chart
2003 Files
Phenology Indicators-2003
OLR Flights- 2003
OFM Flights-2003
PTB Flights-2003
SJS Flights-2003
CM Flights-2003
NOW Flight-2003
Stone Fruit Pest Management Alliance Project
The charts presented here reflect the trap data averaged across the orchards participating in the Stone Fruit Pest Management Alliance project for the Central Valley. The number of traps and orchards included varies depending on the species. Most charts include comparison data for the PMA blocks vs. the "conventional" blocks. This project is managed by Walt Bentley and Shawn Steffan located at Kearney Agricultural Center. For further information about the Stone Fruit PMA Project, see the web site at: http://www.uckac.edu/treefruitipm/
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PMA OLR Flight-September 11, 2002
PMA OFM Flight-September 11, 2002
PMA PTB Flight-September 11, 2002
PMA OBLR Flight-September 11, 2002
PMA SJS Prste Flight-September 11, 2002
PMA SJS Flight-September 11, 2002
PMA CM Flight-September 11, 2002
Row Crop Pest Charts
Noctuid moth species include some of the most important pests of several row crops on the west side of the San Joaquin Valley. Armyworms, loopers, cutworms and tomato fruitworm/corn earworm are among the most important. The charts presented here are from trap data collected at the West Side Research & Extension Center. The graphs represent the average of three traps for each species. These charts should be helpful in determining when new generations of moths are flying. We would expect to see an increase in egg laying and larval hatching within several days to a couple of weeks after the flights start. The magnitude of moth flights has not been correlated well with potential damage so cannot be used to determine treatment thresholds. Field scouting for eggs and larvae is still critically important but moth flights may indicate when to increase scouting efforts. See the UCIPM website at http://www.ipm.ucdavis.edu/ for detailed information and phenology models about each species.
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Row Crop Pests-October 17, 2002
5-Year History Charts
