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DavidP · November 14, 2013

I just pulled up one of my grafted tomato plants. I'm debating whether to leave some others thru winter but I need space for winter crops, peas cabbages etc.

The plant I pulled actually had an interesting root system. The plant sprouted a small rootball later on in the season from above the graft site. From the photo below you can see that the scion rootball has been heavily infected with nematodes whereas the rootstock root system is relatively healthy despite a few nodules indicative of root knot nematode infection. I've read that above a certain soil temperature the resistance doesn't work or at least not so well.

So looks like my rootstock is working as advertised.

Rootstock rootball at top, graft union 2/3rds of way down stem and small scion rootball furthest down

November 14, 2013	#106
DavidP Tomatovillian™ Join Date: Jun 2011 Location: Riverside, Southern California, USDA 9b, Sunset 19 Posts: 63	I just pulled up one of my grafted tomato plants. I'm debating whether to leave some others thru winter but I need space for winter crops, peas cabbages etc. The plant I pulled actually had an interesting root system. The plant sprouted a small rootball later on in the season from above the graft site. From the photo below you can see that the scion rootball has been heavily infected with nematodes whereas the rootstock root system is relatively healthy despite a few nodules indicative of root knot nematode infection. I've read that above a certain soil temperature the resistance doesn't work or at least not so well. So looks like my rootstock is working as advertised. Rootstock rootball at top, graft union 2/3rds of way down stem and small scion rootball furthest down Last edited by DavidP; November 14, 2013 at 06:35 PM.