- Author: Ben A Faber
It's hot and many trees need help in the heat. There's several ways you an help, however many require prior preparation:
?Successful Irrigation is crucial for cooling, both unser-canopy and over-canopy Using the Irrigation systems strategically will achieve best results ?
Mulching tree berms, also improves soil and tree health ?
Monitoring – Soil moisture and air temperatures ?
The use of Protectants(reflectants) products can be used to alleviate the stress of heat, usually provides a few degrees relief ?. Antitranspirants can make it worse by shutting down stoma and reducing cooling transpiration
Cover cropping and hedgerows increase humidity and evaporative cooling.
Watch a video produced by the CA Avocado Society for what can be done in preparation and now:
https://www.youtube.com/watch?v=E7EWU0tAMVY
- Author: Ben Faber
If you see significant leaf drop in your groves due to excessive heat, the following actions are recommended:
- As soon as possible, whitewash branches exposed to the sun with special attention paid to branches on the west and south sides of the tree.
- Trees that lose a significant portion of leaves cannot efficiently move water, therefore restrict irrigation amounts to ensure you avoid creating wet, soggy conditions that can lead to root rot. It's best to irrigate less frequently and with smaller amounts of water.
- Do not prune your trees — leave hanging leaves in place to protect the tree from sunburn. Once new tree growth has occurred (in the next 3 – 6 months), pruning can take place on living wood.
- Adjust fertilization as you would with a frost-damaged tree: reducing the amount of fertilizer until the tree is re-established. If you see signs of a particular nutrient deficiency, adjust fertilization accordingly.
For more information about managing heat in avocado groves, growers can view the following articles on the California avocado growers' website:
- Author: Ben Faber
Heat Mitigation Around the World
A chance to hear what can and is being done by growers
to reduce the damage inflicted on avocado fruit and trees
World wide Speakers:
Click here for the June Seminar/Webinar Recording
- Author: Ben Faber
California Avocado Growers Seminars Series 2022
from CA Avocado Society/CA Avocado Commission/University of CA Cooperative Extension
June 15 (9 - 11 AM)
Seminar/Webinar Topic
Heat Mitigation Around the World
Dealing with Hot Times in the Avocado Orchard: What is done by others to mediate Heat.
World wide Speakers:
Click here to register for the June Seminar/Webinar
Don't Let Your Trees Look Like This!!!!!!!!!!!!
- Author: Ben Faber
Manipulating the Avocado & its Environment
for Optimum Temperature & Light
California Avocado Society, California Avocado Commission & UC Cooperative Extension
AVOCADO GROWER WEBINAR
Tuesday, Aug. 17
9-11 a.m.
Register Here: https://us02web.zoom.us/webinar/register/WN_kByWCEvfTC-TwZgjmSWptw
And if you want to hear about irrigation from another viewpoint - greenhouses and berries - which is still good information for avocado growers, check out
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