Win a copy of Grocery Story this week in the City Repair forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education experiences global resources the cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • r ranson
  • Nicole Alderman
  • Anne Miller
stewards:
  • Mike Jay
  • paul wheaton
  • Joseph Lofthouse
garden masters:
  • Joylynn Hardesty
  • Steve Thorn
  • James Freyr
  • Greg Martin
  • Dave Burton
gardeners:
  • Carla Burke
  • Pearl Sutton
  • Dan Boone

Problem with spots on Physalis Peruviana Leafs

 
Posts: 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hello everyone, first time posting, but reading your posts for a long time.

And i come with a problem.

This problem appeared in a culture of Physalis Peruviana in greenhouse with a relatively high humidity of the air, strikes leafs that turn yellow and fall and fruits that fall prematurely.
If someone can help me to find the problem, whether it is a disease (Cercospora sp.), nutritional deficiency (phosphorus or nitrogen) or both. And what the solution in a bio method...

Hope to have an answer soon,

Best regards.

Thank you.

Miguel A. S. Almeida-Permacultor
Quintal daTitia
Projetos, Serviços e Produção em Permacultura
https://www.facebook.com/QuintaldaTitia/
IMG_20190219_103942.jpg
[Thumbnail for IMG_20190219_103942.jpg]
IMG_20190219_103947.jpg
[Thumbnail for IMG_20190219_103947.jpg]
IMG_20190219_103953.jpg
[Thumbnail for IMG_20190219_103953.jpg]
IMG_20190219_104019.jpg
[Thumbnail for IMG_20190219_104019.jpg]
IMG_20190219_161145.jpg
[Thumbnail for IMG_20190219_161145.jpg]
IMG_20190219_161151.jpg
[Thumbnail for IMG_20190219_161151.jpg]
 
pollinator
Posts: 424
Location: Ashhurst New Zealand
95
duck trees chicken cooking wood heat woodworking homestead
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hola Quintal and welcome to permies!

Physalis peruviana is a common garden plant in NZ, almost a weed in milder areas. We've got it all around the place and in our maritime temperate climate it's pretty robust, with the only pests being whiteflies and occasionally scale. It doesn't even seem to get eaten by the opportunistic looper that devours many of our other nightshades like tomatoes and eggplants. So, I don't grow it in my glasshouse and haven't seen this sort of trouble.

That next to last photo shows a leaf that might be chlorotic from low iron or manganese, but the discoloration is not very pronounced. The damage in the top photos reminds me of sunscald. Does the greenhouse get hot sometimes with a lot of direct sun? If the leaf surface overheats and the plant can't transpire effectively, tissue damage can happen and then a secondary pathogen such as a fungus can take hold. The spots in general look to be hallmarks of an infection, either fungal or bacterial, and this might be a result of high humidity and lack of air circulation.

Anyway, these are just guesses on my part. Maybe someone with more experience will chime in and have better answers.
 
You don't like waffles? Well, do you like this tiny ad?
Food Forest Card Game - Game Forum
https://permies.com/t/61704/Food-Forest-Card-Game-Game
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!