Saturday, June 30, 2018

More wilt

By now, I think every tomato plant in the bales is affected by wilt to a greater or lesser degree.  I have tried to aggressively prune affected branches on plants. This may have stalled it on a few plants, for a few weeks; for some of them, that may make the difference in getting mature fruit before the plant dies.

I think there are two types of wilt going on.  (1) The first is characterized by classic signs of wilt : drooping leaves at top of plant, asymmetrically affecting different sides or stems on the plant, and yellowing of leaves at the bottom of the plant.  The yellow leaves do not wilt right away.  (2) The second kind of wilt has similar top-wilt symptoms but instead of turning yellow, the leaves turn wilted first, droopy/crumpled up and greenish-brown.  It's a "wet" sort of wilting, not dry and crispy.

Seems like various bugs cause similar symptoms because they are all causing problems by clogging up the plant's vascular system.  Fusarium, verticillium, and "bacterial" wilt are all similar.  However the first is a fungus, the second is bacteria, and the third is a different bacteria - Ralstonia solanacearum.   Also, different "races" of Fusarium apparently exist.   

None of the 13 tomato plants in my containers have any signs of wilt.  

There are about a half dozen sporting tomato plants growing in the bales too.  Clearly, the bales got "well inoculated" with my homemade compost, which was teeming with tomato seeds!  These sports are less affected by wilt.  Perhaps this is just because they are younger, having germinated in (probably) early May.   I'll let 'em grow and see what happens.

Here was my initial bale planting setup:
bales = CA+MS ; WB+BC; HC+HC; FL+FL;  SG +  F4 #55A-7

Here's how each is doing as of 6/30/18.
CA:  Has wilt #2. Good fruit set.  Only part of the plant is affected by wilt. Plant still is somewhat healthy.
MS:  Killed by Wilt #1. Pulled it out on 6/23. 
WB:  Plant has grown to about 6 ft height, but fruit set is poor-to-fair (only a few fruit; blossom number low).   Wilt #1 slightly affected.
BC:  The most vigorous bale plant.  8 ft height.  Good fruit set.  Has slight wilt #1 I think.  Probably strong enough to produce a good number of fruit before it gives in.
HC #1: killed by wilt #1. Pulled on 6/20.
HC #2:  Has wilt #1 and going downhill fast now.   Strangely, this one had 2 germinated seeds in the original planting, right next to each other - so I just transplanted them both - but one of them is not HC, it's clearly a beefsteak-y type.  But it's got wilt #1 too.  Not sure if it will make it long enough to ripen fruit.
FL #1: killed by wilt#1, pulled on 6/20
FL #2: good fruit set, still growing, but has wilt #1 to a modest degree.
SG:  Wilt#1 is getting worse.
55A7:  Wilt#2 is getting serious.  This is a bummer because I've got a few cross-pollinated fruit growing and they are not ripe yet.

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