Basil Plants
Q.

Brown spots on basil leaves

Zone Auckland, New Zealand | Goose added on December 11, 2015 | Answered

Have some basil seedlings and some of them are developing leaves mottled with black/brown specs. Any ideas? Basil is being grown outdoors in New Zealand.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on December 11, 2015

I believe this to be the Downy Mildew pathogen on your young seedlings.
Your young seedlings can be infected by having infected seeds.

You will need to destroy the plants.

Here are some links to help you.

https://edis.ifas.ufl.edu/pp271

https://growingsmallfarms.ces.ncsu.edu/growingsmallfarms-2014-basil-downy-mildew/

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