Damage Caused by Popillia Japonica on Treated Grape Foliage, 1984 | Zendy

R. N. Williams | Zendy; D. S. Fickle | Zendy; M. A. Ellis | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Damage Caused by Popillia Japonica on Treated Grape Foliage, 1984

Author(s) -

R. N. Williams,

D. S. Fickle,

M. A. Ellis

Publication year - 1985

Publication title -

insecticide and acaricide tests

Language(s) - English

Resource type - Journals

ISSN - 0276-3656

DOI - 10.1093/iat/10.1.46a

Subject(s) - japanese beetle , popillia , horticulture , vine , shoot , canopy , sprayer , japonica , biology , acre , botany , agronomy

An experiment consisting of 6 treatments to control Japanese beetle adults was located at Wooster, OH. Plots consisted of 2 grape vines, having 4 replications per treatment in randomized blocks. Vine spacing was 2.7 m between rows and 2.4 m within the row. Treatments were applied as foliar sprays on 26 Jun, 5 Jul, 18 Jul, and 6 Aug at the rate of 1870 liters/ ha (200 gal/acre) using a hand-operated CO2 sprayer operated at 3.2 kg/cm2 (45 psi) and equipped with a 9505E-Tee Jet nozzle. Visual observations for feeding damage to foliage were made on the 2.4 m of canopy between the trunks of the 2 vines from the east side of the row on 5 dates from 17 Jul-14 Aug. This was accomplished by examining 10 shoots per treatment for beetle feeding. Each shoot was rated 0, 1, 2, 3, 4, or 5 depending on how many of the 5 terminal leaves were damaged. Readings of 0 indicated no damage, while 5 indicated feeding on all leaves. Ratings were totaled and compared by treatment.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research