Research brief… outdoor experiments for controlling rose powdery mildew
Hilgardia 24(8):8-8. DOI:10.3733/ca.v024n08p8a. August 1970.
OUTDOOR EXPERIMENTS for control of powdery mildew of rose, resulting from infection by Sphaerotheca pannosa, were conducted at Livermore in 1969. Twelve plants of the variety “Forever Yours” were used per treatment, and each treatment was replicated three times. The roses were sprayed once every two weeks (with two exceptions when the intervals were three weeks) from July 23 until November 24 and 25 when results were recorded. All treatments were applied as sprays and all of the foliage was treated to the point of run-off. Triton B1956 spreader-sticker was added to each spray treatment at the rate of 1.2 ml (¼ tsp) per gallon.
Also in this issue:More questions than answers…
Codling moth research
Strong honeybee colonies prove value in almond pollination
Effects of mud-wind-rain on beef cattle performance in feed lot
Meristem culture for elimination of strawberry viruses
Irrigation schedules and production of processed tomatoes on the San Joaquin Westside
Controlling rhizoctonia seedling disease of cotton in Southern California
Effects of three semen extenders on reproduction of turkeys
Observations on the symbiotes of certain Coccidae