Grape Leafhopper (GLH) and Variegated Grape Leafhopper (VLH).
2008 Phenology information
Fresno County
5-1 GLH just hatched, south of Fresno at American and HW99. (Chris Million)
Tulare County
5-27 GLH adults, west of Delano, Ave. 24.
Madera County
5-4 GLH first instar, Ave. 7 and Rd. 31. (Devin Carroll)
Kern County
5-3 Wheeler Ridge, GLH & VLH first instars. (Donald Thomas)
Historical data for Delano to Fresno
|
GLH |
GLH |
VLH |
VLH |
year |
hatch |
adult |
hatch |
adult |
1998 |
|
6-2 |
|
6-9 |
2000 |
4-28 |
5-24? |
5-4 |
5-26? |
2001 |
4-30 |
5-22 |
5-7 |
|
2002 |
4-27 |
|
5-6 |
|
2003 |
5-9 |
|
|
|
2004 |
4-15 |
5-8 |
4-22 |
5-12 |
2005 |
5-6 |
|
5-9 |
|
2006 |
5-12 |
5-24 |
5-16 |
6-7 |
2007 |
4-29 |
5-22 |
5-2 |
5-26 |
2008 |
5-1 |
5-26 |
|
5-31 |