Resources by Douglas G. Pfeiffer
|Brown Marmorated Stink Bug||May 21, 2009||2902-1100|
The Japanese beetle is found throughout Virginia and in most of the Eastern United States. In regions west of the Mississippi it is found in isolated pockets. Japanese beetles were first found in New Jersey in 1916 and have spread from that point since. The Japanese beetle has been well established in Virginia since the early 1970’s.
|Dec 11, 2014||2902-1101 (ENTO-97NP)|
|Japanese Beetle Pest Management in Primocane-Bearing Raspberries||Sep 15, 2009||2909-1411|
|Rednecked Cane Borer||Apr 15, 2016||3104-1562 (ENTO-210NP)|
In Virginia both the 17-and 13-year cicadas damage many ornamental and hardwood trees. Oaks are commonly attacked but the most seriously damaged are newly planted fruit and ornamental trees such as apple, dogwood, peach, hickory, cherry, and pear. Pines and other conifers are not commonly attacked.
|Feb 25, 2015||444-276 (ENTO-105NP)|
|2017 Spray Bulletin for Commercial Tree Fruit Growers||
Integrated pest management (IPM) is the approach emphasized in this guide; some aspects of IPM are incorporated throughout, although this guide mainly deals with the chemical component of IPM. IPM combines biological control from predators with selective chemical application for maintaining pest populations below economic threshold levels. This approach requires that growers give careful consideration to the selection, application rate and timing of chemical sprays. The degree of integration achieved will vary according to the management ability, training and objectives of the orchardist. Inadequate monitoring or implementation of IPM practices will lead to unsatisfactory results. In order to encourage the biological control components of the program, growers must consider the toxicity of chemicals to predators (Table 9, page 59) in addition to their efficacy against fruit pests (Tables 7 and 8, pages 56-58).
|Feb 22, 2017||456-419 (ANR-172P)|
|IMPACT: Virginia Winter Fruit School Impact||
Tree fruits are important to the agricultural economy in Virginia. The commonwealth ranks sixth in the nation in apple production, with a crop valued at more than $68 million, and 20th in peach production, with a crop valued at $4.5 million. Although smaller in acreage, cherries, pears, and plums also play an important role in some areas of Virginia. These fruit crops are susceptible to an everchanging array of insects, plant diseases, and weeds, and pest management programs are complex and knowledge-intensive.
|May 13, 2015||AREC-135NP|
The spotted lanternfly (SLF) originates from China where its presence has been documented in detail dating as far back as the 12th century.
|Feb 3, 2016||ENTO-180NP|
|Insect Identification Laboratory Annual Report 2016||Mar 7, 2017||ENTO-233|