Psyllid update September 5 2019
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Psyllid update September 5 2019
Potato All Locations
Potato Psyllid
Posted on: September 5, 2019 by Lucy Standley
This week we had traps deployed in 62 of the 79 fields (78.4%) monitored this year, and we found a total of 32 psyllids across 13 (16.4%) of the 79 monitored fields. Many of the 79 total fields that we were sampling have been vine-killed.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (6 fields), Owyhee (2 fields), Twin Falls (2 fields), Jerome (1 field), and Power (1 field).
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
Our research with Russet Burbank in Idaho has shown that plants should be protected from infection with the ZC bacterium at least until one week before vine kill to reduce ZC symptoms. Therefore, we continue to urge growers to maintain their IPM programs.
We are not including “heat maps” this week given that they tend to show skewed patterns with smaller sample sizes.
Following recommendations from our ZC Advisory Committee last year, we shortened the duration of our monitoring program. This week we conclude the official monitoring program, though we will continue monitoring fields at the Kimberly Research & Extension Center as well as grower- and crop consultant-submitted samples. We will post any important updates that develop.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
--WSU site: https://potatoes.decisionaid.systems/idaho
» http://www.uidaho.edu/cals/potatoes/news
» https://potatoes.decisionaid.systems/idaho
Psyllid update September 5 2019
Potato All Locations
Potato Psyllid
Posted on: September 5, 2019 by Lucy Standley
This week we had traps deployed in 62 of the 79 fields (78.4%) monitored this year, and we found a total of 32 psyllids across 13 (16.4%) of the 79 monitored fields. Many of the 79 total fields that we were sampling have been vine-killed.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (6 fields), Owyhee (2 fields), Twin Falls (2 fields), Jerome (1 field), and Power (1 field).
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
Our research with Russet Burbank in Idaho has shown that plants should be protected from infection with the ZC bacterium at least until one week before vine kill to reduce ZC symptoms. Therefore, we continue to urge growers to maintain their IPM programs.
We are not including “heat maps” this week given that they tend to show skewed patterns with smaller sample sizes.
Following recommendations from our ZC Advisory Committee last year, we shortened the duration of our monitoring program. This week we conclude the official monitoring program, though we will continue monitoring fields at the Kimberly Research & Extension Center as well as grower- and crop consultant-submitted samples. We will post any important updates that develop.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
--WSU site: https://potatoes.decisionaid.systems/idaho
» http://www.uidaho.edu/cals/potatoes/news
» https://potatoes.decisionaid.systems/idaho
