Spudman January 2024 - 39
typically very host-specific so something
that attacks a tomato would not likely
attack a lettuce crop. I often get calls
from growers thinking the powdery
mildew on their cucurbits is spreading
to the high tunnel tomatoes. Powdery
mildews look the same, but each
powdery mildew is very host-specific
to the crop. While it may seem that the
disease is spreading from one species
of crop to another, it is because all
powdery mildews like the same humid
conditions, so they tend to develop at
the same time.
AGE OF TISSUE AFFECTED
Abiotic symptoms are often limited
to one age of tissue. I often ask growers
with crop problems to note if the
damage is only on the lower, older
leaves or on the new leaves. They often
report the older leaves look terrible, but
the new growth looks healthy. In these
cases, the damage could have happened
when the plant was small when the
foliage was vulnerable and damaged
from a one-time event.
Hail damage on a watermelon, a day after a storm.
This is quite common in young
vegetable transplants that were exposed
to low temperatures or not hardened
off adequately. This can also happen
to fruit, as in the case of blossom
end rot, (poor calcium movement) or
catfacing caused by cold temperatures
in tomatoes. The earlier fruit is affected
but the later fruit is free of damage.
GRADIENT OF INJURY
This often occurs if there is heater
injury and herbicide damage. The plants
nearest the heater or closer to the
sprayer look the worst and as you move
farther away, the plants look better.
GETTING HELP TO DIAGNOSE
DISEASES
The good news about abiotic damage
is that it often results from a one-time
event, so if the roots are healthy (which
you have already checked), the new
growth should look better in a few
days. Diagnosing plant problems can be
tricky, so remember that all land-grant
universities have plant diagnostic clinics
ready to assist with problem-solving.
EVERY POTATO
COUNTS
You want the best of both worlds. Speed
to deliver maximum capacity and accurate
defect detection to maintain consistent
quality. Inspect the entire surface and look
inside each potato to get the best out of
every batch.
More info?
Please contact John Albert
(206) 915-4962
john.albert@ellips.com
www.ellips.com
Spudman.com 39
http://www.ellips.com
http://www.Spudman.com
Spudman January 2024
Table of Contents for the Digital Edition of Spudman January 2024
Editor's Letter
Futuristic farming
Freezing the future
Troubled waters
Succession farming
Biotic vs. abiotic
National Potato Council
Potato Association of America
Potato Sustainability Alliance
Potatoes USA
Calendar
Advertiser Index
Spudman January 2024 - 1
Spudman January 2024 - 2
Spudman January 2024 - 3
Spudman January 2024 - Editor's Letter
Spudman January 2024 - 5
Spudman January 2024 - 6
Spudman January 2024 - 7
Spudman January 2024 - Futuristic farming
Spudman January 2024 - 9
Spudman January 2024 - 10
Spudman January 2024 - 11
Spudman January 2024 - 12
Spudman January 2024 - 13
Spudman January 2024 - 14
Spudman January 2024 - 15
Spudman January 2024 - 16
Spudman January 2024 - 17
Spudman January 2024 - Freezing the future
Spudman January 2024 - 19
Spudman January 2024 - 20
Spudman January 2024 - 21
Spudman January 2024 - 22
Spudman January 2024 - 23
Spudman January 2024 - 24
Spudman January 2024 - 25
Spudman January 2024 - Troubled waters
Spudman January 2024 - 27
Spudman January 2024 - 28
Spudman January 2024 - 29
Spudman January 2024 - 30
Spudman January 2024 - 31
Spudman January 2024 - Succession farming
Spudman January 2024 - 33
Spudman January 2024 - 34
Spudman January 2024 - 35
Spudman January 2024 - Biotic vs. abiotic
Spudman January 2024 - 37
Spudman January 2024 - 38
Spudman January 2024 - 39
Spudman January 2024 - National Potato Council
Spudman January 2024 - 41
Spudman January 2024 - 42
Spudman January 2024 - 43
Spudman January 2024 - Potato Association of America
Spudman January 2024 - 45
Spudman January 2024 - Potato Sustainability Alliance
Spudman January 2024 - 47
Spudman January 2024 - Potatoes USA
Spudman January 2024 - 49
Spudman January 2024 - Advertiser Index
Spudman January 2024 - 51
Spudman January 2024 - 52
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-potato-expo-2025-digital-guide
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https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-january-2024
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-november-december-2023
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https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-january-2023
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-november-december-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/spudman-september-october-2022
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https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2022
https://www.nxtbook.com/greatamericanmediaservices/SPUD/november-december-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/september-october-2021
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https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2021
https://www.nxtbook.com/greatamericanmediaservices/SPUD/november-december-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/september-october-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/july-august-2020
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https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2020
https://www.nxtbook.com/greatamericanmediaservices/SPUD/november-december-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/september-october-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/july-august-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/may-june-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/april-2019
https://www.nxtbook.com/greatamericanmediaservices/SPUD/march-2019
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https://www.nxtbook.com/greatamericanmediaservices/SPUD/january-2019
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