Table grape rootstocks in South Africa

KEY (1) Block removed in 2002 (2) Trial terminated in 2010 (3) Trial terminated in 2001 (4) Chemical nematode control applied (5) Trial removed (6) Number/250cc soil

Root-knot nematode (6) Phylloxera Margarodes

Phytophthora Virus status (leaf roll virus)

- - - -

- - - -

- - - -

- - - -

- - - -

-

-

-

-

-

0

None

None

None

All scion-rootstock combinations tested positive, except R 99 and US 8-7

-

-

-

-

-

-

-

-

-

-

0-10

None

None

None

All scion-rootstock combinations tested positive

90-440

None

None

None

All scion-rootstock combinations tested positive

0-10

None

None

None

All scion-rootstock combinations tested positive All scion-rootstock combinations tested positive

Not determined (5)

None

None

None

Not determined (5)

None

Live margarodes found on dead Ramsey and 143 B Mgt rootstocks

None

All scion-rootstock combinations tested positive

Table Grape Rootstocks in South Africa 49