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Seasonal observations of the UCCE Master Gardeners
Flowers
Comments:
by mike stoltz
on June 25, 2022 at 1:14 PM
My tomato plant's leaves are turning inward after growing well for the first 4-5 weeks .  
They are a drip system ,15min per day.  
There some scrub oaks about 30' away and heard they may have an impact.  
I rotate sights but this has happened the last two years.  
Any thoughts on this ?
by Shonda Davis
on June 26, 2022 at 7:42 PM
Great article. I can relate to your experience. It is such a joy to learn something new each season.
by Alex Russell
on June 27, 2022 at 10:59 AM
Shonda, thank you so much for the comment. The garden is quite the teacher.  
Mike, curled leaves might be a sign of heat stress. In a climate like the Central Valley, shade cloth helps in the summer. It could also be an irrigation issue. You can buy a cheap soil moisture meter or poke your finger into the soil to see how deep the water reaches. See p. 8 of this UCANR article for more details: https://anrcatalog.ucanr.edu/pdf/8159.pdf.  
Curled leaves also might not be a huge problem. I've got some curling leaves on a few of my plants even though they get the same watering regimen as healthier-looking plants right beside them. If there are no indications of pest or fertility problems and the fruit is coming along fine, I don't worry too much about curled leaves. I'll pull all the plants in late July anyway.
 
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