pest mark or disease ?

tired_of_digging(z10)November 16, 2006

I left the house for a long trip. When I came back, I saw some of my cacti bearing these brown markings

Left: Sclerocactus sp. This one has a dented marking, as if it was nibbled by some insect.

Right: Borzicactus Samaipatanus, has a protruding marking. I tried to scrape it off, but it won't come-out.

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shrubs_n_bulbs(z8/9 UK)

I'll go with sun scorch.

    Bookmark   November 16, 2006 at 6:45PM
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I'll second that - diagnosis: sunburn

Strong sun by itself is not necessarily harmful, but combined with hot temperatures and poor air circulation, well, you see the results.

    Bookmark   November 16, 2006 at 9:07PM
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