Skip to main content
SpringerPlus

Table 2 Predicted start dates of the second and third generations of leaf-form nymphs of Daktulosphaira vitifoliae in Canelones Department, Uruguay

From: Life history and assessment of grapevine phylloxera leaf galling incidence on Vitis species in Uruguay

Year

Biofix

Start date 2ndgeneration

Start date 3rdgeneration

(K1 = 303 DD, LTT2 = 6.4°C)

(K = 606 DD, LTT = 6.4°C)

2004

1-Oct

2-Nov

30-Nov

2005

1-Oct

3-Nov

26-Nov

2006

1-Oct

30-Oct

25-Nov

  1. Note: Dates were estimated from accumulated degree days since October 1st of each year.
  2. 1 Thermal constant and 2Lower threshold temperature determined by Johnson et al. 2010.
Back to article page