Figure: 4 TAC §10.47

A laboratory approved by the department shall complete the following test(s).

Description Test # Samples

Mother Plants ¹PVX,S,Y,A,M, M-ID, PLRV, Potato Latent, PSTV,Cms & Erw Individual

Nuclear PVX,S,Y,M,Cms & Erw Individual - Combined 5/test

Greenhouse foliage PVX,S or any other virus tested for by using ELISA Individual - Combined 5/test - 10 min. to 1% of plant pop.

Greenhouse tubers Erw (lenticel)
Cms (IFAS and/or ELISA) Individual with 10 min. to
0.5% of plant pop..

Up to 100 per group with 10
min. to 1% of plant pop.

Field foliage G1 - PVX,S

G2,G3 - PVX + PVY

on cultivars with latent reactions such
as Russet, Norkotah, Shepody, etc. G1- Individual - 25 min. to 1%
of plant pop.

G2 - Individual - 200/acre
with 200 min.

G3 - Individual -20/acre with
100 min.

G1-3 combined 5/test


Description	Test	# Samples

Mother Plants	¹PVX,S,Y,A,M, M-ID, PLRV, Potato Latent, PSTV,Cms & Erw	Individual
Nuclear	PVX,S,Y,M,Cms & Erw	Individual - Combined 5/test
Greenhouse foliage	PVX,S or any other virus tested for by using ELISA	Individual - Combined 5/test - 10 min. to 1% of plant pop.
Greenhouse tubers	Erw (lenticel) Cms (IFAS and/or ELISA)	Individual with 10 min. to 0.5% of plant pop.. Up to 100 per group with 10 min. to 1% of plant pop.
Field foliage	G1 - PVX,S G2,G3 - PVX + PVY on cultivars with latent reactions such as Russet, Norkotah, Shepody, etc.	G1- Individual - 25 min. to 1% of plant pop. G2 - Individual - 200/acre with 200 min. G3 - Individual -20/acre with 100 min. G1-3 combined 5/test

¹Potato viruses X, S, Y, A and M, M-Idaho, potato latent, PLRV (potato leafroll virus),
PSTV (potato spindle tuber viroid), Cms (Clavibacter michiganensis subsp.
sepedonicus), Erw (Erwinia carotovora subspp. atroseptica and carotovora)

A copy of test results from an approved laboratory shall be provided to the department.
Laboratory testing for nuclear and G1-3 seed lots are defined under Seed Sources and
Disease Tolerances.