Silver Leaf Nightshade Control

by Steve
(Bakersfield, Ca. USA)

Silverleaf Nightshade

Silverleaf Nightshade

Has anyone found a suitable herbacide for this silver leaf nightshade?

I have tried glyphosphate with a surfactant but with little results. I have heard of a product called percloran(?) but don't know if it's effective or if I have the correct name.

So far I've been removing this stuff by hand, but it keeps coming back.

A few of my sheep have become very ill after eating these weeds, and it has cost me a bundle in veterinary costs.

Does anybody have any advice on getting rid of this type of nightshade?

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Silver Leaf Nightshade Control

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Sep 17, 2013
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starstarstarstarstar 		Try Grazon?
by: Sarah Wilson

I found a study from Texas A&M showing that Grazon (a combination of glycophosphate/picloram and imaprazyr works well at controlling silverleaf nightshade chemically.

I would also recommend using chemical control in the fall, so herbicide will be drawn down into the roots. Immediately after or just before the first freeze is the best time to spray perennials.

As stated earlier, mechanical removal must include all the roots, so don't cut - dig! As with any weed problem, planting your ground with desired species should be part of the plan. Weeds love disturbance and bare ground. Occupied ground is much harder to invade. If you are a farmer you might consider a cover crop or leaving residue in the off-season to mitigate weed invasion.
Jul 19, 2011
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starstarstarstarstar 		'Solanum Elaeagnifolium'...
by: Robert

This is not one I've personally had to deal with. But I do sympathise.

Silver leaf nightshade is deep rooted, and spreads not just by seed but by creeping rhizomes AND by root fragments too! Which is why it's coming back after hand removal - it only takes a tiny piece of root for regrowth.

You're right that the berries are definitely poisonous to livestock, but the spines should put them off a bit (dozy sheep!).

Glyphosphate should work well - but it's apparently best applied when the berries are green to yellow. And when the plants are not water stressed (better take-up).

Hopefully someone with more direct experience can add to this.

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