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PEAR: Pyrus communis L. 'Bartlett' A. Agnello & D. Kain Comstock mealybug (CMB); Pseudococcis comstocki (Kuwana) Dept. of Entomology
 

Summary: PEAR: Pyrus communis L. 'Bartlett' A. Agnello & D. Kain
Comstock mealybug (CMB); Pseudococcis comstocki (Kuwana) Dept. of Entomology
N.Y.S. Agric. Expt. Station
Geneva, NY 14456
315/787-2341
PEAR, EVALUATION OF FOLIAR INSECTICIDES TO CONTROL
COMSTOCK MEALYBUG, 2000: Tests were set up to compare the effectiveness of
different treatments using Actara, Provado, and Diazinon in the control of Comstock mealybug
(CMB) in a commercial orchard in Wayne Co. Treatments were arranged randomly and applied in
single-tree plots that were replicated 4 times. Treatments were applied using a hand-held gun from
a truck-mounted nursery sprayer (Rears Nifty-Pul-Tank) operating at 300 psi, and delivering 5 gal
per tree in a mature (>20 yr-old) planting of 'Bartlett' pears at the Young orchard in Williamson,
N.Y. Treatments and rates applied were: Actara 25WG at 5.5 oz and 4.5 oz formulation per acre,
Provado 1.6F at 20 fl oz per acre, and Diazinon 50WP at 3 lb per acre, plus an untreated control.
All treatments were applied against crawlers of both the first brood at the 1-inch fruit stage
(June 2) and the second brood on August 8. (To monitor the developmental progress of the
second brood crawlers, pheromone traps were hung in the Young orchard as well as in a nearby
orchard -- Peters -- having a history of mealybug infestations; Fig. 1) on June 29 and checked
every 2-3 days for adult males, and double-sided carpet tape traps were placed on scaffolds limbs
in each control tree on July 24 and checked every 2-3 days for crawlers.)

  

Source: Agnello, Arthur M. - Department of Entomology, Cornell University

 

Collections: Biology and Medicine