Backyard Orchard News
It was not a good day for a flower fly.A flower fly, aka syrphid fly, dropped down in a patch of...
Crab spider nails a flower fly in the Haagen-Dazs Honey Bee Haven. (Photo by Kathy Keatley Garvey)
Crab spider loses its prey and heads down a stem. (Photo by Kathy Keatley Garvey)
Volatile organic compounds react with NOx to produce ozone which is an air pollutant affecting...
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Citricola scale crawlers have been hatching and emerging for several weeks. Now the California red scale crawlers are joining them. Red scale crawlers begin to emerge at 550 degree days. Our degree day web site http://ucanr.org/sites/KACCitrusEntomology/Home/California_Red_Scale/Degree_Days_885/
indicates that Tulare county has accumulated 571 degree day units. We use double sticky tape wrapped around twigs with female red scales to catch crawlers and confirm that emergence is matching up with the degree day units.
Now is a good time to apply insecticides, as the crawlers will settle down and become 1st instar nymphs and that is the stage that is most susceptible to insecticides.
This sticky tape has caught citricola scale crawlers (brownish) and red scale crawlers (smaller, yellowish)
When we think about honey bees, we ought to think about the immune system.Understanding the honey...
Michelle Flenniken at an apiary. (Photo by Kim Fondrk)
Do you brake for wasps? We spotted a bumper sticker on the UC Davis campus the other day that...
Solitary vespid foraging on Indian hawthorn at the Benicia marina. (Photo by Kathy Keatley Garvey)
Upside down, a solitary vespid checks out its surroundings. (Photo by Kathy Keatley Garvey)
And away it goes. (Photo by Kathy Keatley Garvey)