Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Vernon M. Stern"'
Autor:
Vernon M. Stern, Brian A. Federici
Publikováno v:
Journal of Invertebrate Pathology. 56:401-414
The histopathology of a granulosis virus (GV) isolated from the western grapeleaf skeletonizer, Harrisina brillians (Lepidoptera; Zygaenidae), was studied in histological sections and wet mounts of this species. In contrast to all other known GVs, th
Autor:
Vernon M. Stern
Publikováno v:
Insecticide and Acaricide Tests. 16:39-40
Pesticides were applied on the Cardinal' table grape in Coachella Valley, Calif, on 12 Mar. Vine spacing was 12 ft between rows and 8 ft within rows. Treatments were arranged in a randomized block design with 5 replicates for each treatment and the c
Autor:
Vernon M. Stern
Publikováno v:
Insecticide and Acaricide Tests. 16:39-39
Pesticides were applied to fresh market table grapes on 27 May. Vine spacing was 12 ft between rows and 8 ft within rows. Treatments were arranged in a randomized block design and with 5 replicates for each treatment and check. Each replicate was a s
Autor:
Vernon M. Stern
Publikováno v:
Insecticide and Acaricide Tests. 16:39-39
Pesticides were applied to fresh market table grapes on 19 Apr. Vine spacing was 12 ft between rows and 8 ft within rows. Treatments were arranged in a randomized block design and there were 5 replicates for each treatment and the check. Each replica
Autor:
Vernon M. Stern
Publikováno v:
Insecticide and Acaricide Tests. 16:38-38
Pesticides were applied for Grape Bud Beetle (GBB) on 1 Mar (Test 1) and 22 Mar (Test 2). Vine spacing in both trials was 12 ft between rows and 8 ft within rows. Both treatments were arranged in a randomized block design and there were 5 replicates
Autor:
Vernon M. Stern
Publikováno v:
Insecticide and Acaricide Tests. 15:56-56
This study was conducted in the Coachella Valley near Indio, Calif. Chemicals were applied to determine whether high temperatures (115°F to 125°F) would cause rapid breakdown of Danitol. Vine spacing was 12 ft between rows and 8 ft within rows. Tre
Autor:
Vernon M. Stern, Judy A. Johnson
Publikováno v:
Journal of Economic Entomology. 77:1327-1334
Glyptoscelis squamulata, often called the grape bud beetle (GBB), is indigenous to North America. During the 1920’s and into the late 1940’s this univoltine species was considered the major pest of fresh table grapes in the Coachella Valley of so
Autor:
R. A. Van Steenwyk, Vernon M. Stern
Publikováno v:
Journal of Economic Entomology. 70:66-69
Peristenus stygicus Loan, a parasite of Lygus , was released in an alfalfa hay field near Bakersfield, Calif., in 1973. The program was evaluated by dissecting a large number of 3rd to 5th instar Lygus (primarily L. hesperus Knight) to determine perc
Autor:
Vernon M. Stern, V. Sevacherian
Publikováno v:
Environmental Entomology. 3:761-766
Host preference tests were conducted on Lygus hesperus Knight and L. elisus Van Duzee in cotton fields interplanted with 20-ft wide strips of alfalfa at 130- to 540-ft intervals and in various patterns of alfalfa row spacing. The distinct preference
Publikováno v:
Journal of Economic Entomology. 79:1217-1220
Laboratory and greenhouse studies with cotton leaves were done with densities (mites per cm2 per day) of 1,2,4,8, and 16 Tetranychus turkestani Ugarov & Nikolski, T. urticae Koch, and T. pacificus McGregor to determine mite density effect on stomatal