GDDs May 9, 2021

Erik Smith, Area Field Crop Specialist/Team Leader
Central New York Dairy and Field Crops

May 12, 2021

Growing degree days (GDD) are calculated by taking the average daily temperature and subtracting the base temperature for development of a given organism ((High + Low)/2 - base temp = GDD). See: Climate Smart Farming CSF Growing Degree Day Calculator. This spring, we are tracking GDD for general grass development (base 32) and alfalfa development (base 41) across our region as a way of monitoring the weather conditions that promote or inhibit growth (soon we will begin tracking GDD for corn silage). Always visually check forage development to assess harvestability.

This week we'll see high temps in the 60+ degree range, but the clear skies may push the high temperatures above forecasts. There could be a few showers here and there as well, but our region is forecast to be mostly rain-free through the weekend.

*Only Saratoga, Galway, Fultonville, and Cobleskill were reporting GDD for May 10.  All others as of May 9.




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Spotted Lanternfly

Lycorma delicatula, or Spotted Lanternfly (SLF), is an invasive plant hopper from Asia and is an agricultural pest. In the United States, it was first found in Pennsylvania in 2014. Spotted Lanternfly has been found in New York State on Staten Island, all New York City boroughs, Long Island, Port Jervis, Sloatsburg, Orangeburg, Ithaca, Binghamton, Middletown, Newburgh, Highland, and the Buffalo area. SLF threatens the agriculture and forestry industries, and is also a nuisance pest. The nymphs and adults feed on over 70 different plants, but is especially detrimental to grapes, a black walnut, hops, maple trees and apples. New York State Ag and Markets supported CCE efforts to help bring awareness to communities and we developed this Public Service Announcement and would appreciate you sharing it with your member lists. 



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