Disease decision center
View call sheetToday
This week
0 blocks need spray review.
5 need PCA review, 0 need more scouting, and 0 need outcome follow-up.
Block risk map
Spatial view of this week’s Spray / Watch / Hold calls.
Weekly recommendations
Every block-level mildew call, its evidence, and the workflow state behind it.
WATCH
pca review neededBlock A
Wine grapes · 6/8/2026
recent humidity data is missing; few recent days were temperature-favorable for mildew; last spray was 33 days ago; growth stage is sensitive: bloom; confirmed scouting evidence is 15 days old; vision model found no visible powdery mildew, but weather pressure remains elevated
Open recommendationGrounded agronomy callWATCH
UC IPM grape guidance supports using powdery mildew risk index, crop stage, and disease pressure to adjust treatment timing. UC IPM grape resources point growers and PCAs to current fungicide efficacy and resistance-management guidance.
Draft recommendation: PCA sign-off is still required before this becomes a grower-ready call.UC IPM Grape Pest Management Guidelines | https://ipm.ucanr.edu/pdf/pmg/pmggrape.pdfUC IPM Annual Efficacy Bulletin | https://ipm.ucanr.edu/agriculture/grape/
- New scout photo or PCA label confirms visible powdery mildew.
- Weather shifts into multiple favorable humidity and temperature windows.
- Spray interval ages beyond the effective protection window.
Product not specified: PCA must verify label, REI/PHI, and use rate before any application.Confirm FRAC group and rotate away from recent single-site chemistry.Check worker-entry timing and harvest interval before scheduling.
PCA sign-off
Not signed off.
OutcomeNeeded
No follow-up recorded.
Would you have sprayed this block this week without our recommendation?
Record what happened.WATCH
pca review neededBlock B
Wine grapes · 6/8/2026
recent humidity data is missing; few recent days were temperature-favorable for mildew; last spray was 25 days ago; growth stage is sensitive: berry set; confirmed scouting evidence is 15 days old; vision model found no visible powdery mildew, but weather pressure remains elevated
Open recommendationGrounded agronomy callWATCH
UC IPM grape guidance supports using powdery mildew risk index, crop stage, and disease pressure to adjust treatment timing. UC IPM grape resources point growers and PCAs to current fungicide efficacy and resistance-management guidance.
Draft recommendation: PCA sign-off is still required before this becomes a grower-ready call.UC IPM Grape Pest Management Guidelines | https://ipm.ucanr.edu/pdf/pmg/pmggrape.pdfUC IPM Annual Efficacy Bulletin | https://ipm.ucanr.edu/agriculture/grape/
- New scout photo or PCA label confirms visible powdery mildew.
- Weather shifts into multiple favorable humidity and temperature windows.
- Spray interval ages beyond the effective protection window.
Product not specified: PCA must verify label, REI/PHI, and use rate before any application.Confirm FRAC group and rotate away from recent single-site chemistry.Check worker-entry timing and harvest interval before scheduling.
PCA sign-off
Not signed off.
OutcomeNeeded
No follow-up recorded.
Would you have sprayed this block this week without our recommendation?
Record what happened.WATCH
pca review neededBlock C
Wine grapes · 6/8/2026
recent humidity data is missing; few recent days were temperature-favorable for mildew; last spray was 18 days ago; growth stage is sensitive: pre-bloom; confirmed scouting evidence is 15 days old; vision model found no visible powdery mildew, but weather pressure remains elevated
Open recommendationGrounded agronomy callWATCH
UC IPM grape guidance supports using powdery mildew risk index, crop stage, and disease pressure to adjust treatment timing. UC IPM grape resources point growers and PCAs to current fungicide efficacy and resistance-management guidance.
Draft recommendation: PCA sign-off is still required before this becomes a grower-ready call.UC IPM Grape Pest Management Guidelines | https://ipm.ucanr.edu/pdf/pmg/pmggrape.pdfUC IPM Annual Efficacy Bulletin | https://ipm.ucanr.edu/agriculture/grape/
- New scout photo or PCA label confirms visible powdery mildew.
- Weather shifts into multiple favorable humidity and temperature windows.
- Spray interval ages beyond the effective protection window.
Product not specified: PCA must verify label, REI/PHI, and use rate before any application.Confirm FRAC group and rotate away from recent single-site chemistry.Check worker-entry timing and harvest interval before scheduling.
PCA sign-off
Not signed off.
OutcomeNeeded
No follow-up recorded.
Would you have sprayed this block this week without our recommendation?
Record what happened.WATCH
pca review neededBlock D
Wine grapes · 6/8/2026
recent humidity data is missing; few recent days were temperature-favorable for mildew; last spray was 27 days ago; growth stage is sensitive: fruit set
Open recommendationGrounded agronomy callWATCH
UC IPM grape guidance supports using powdery mildew risk index, crop stage, and disease pressure to adjust treatment timing. UC IPM grape resources point growers and PCAs to current fungicide efficacy and resistance-management guidance.
Draft recommendation: PCA sign-off is still required before this becomes a grower-ready call.Recommendation is usable for pilot review, but field evidence is incomplete.UC IPM Grape Pest Management Guidelines | https://ipm.ucanr.edu/pdf/pmg/pmggrape.pdfUC IPM Annual Efficacy Bulletin | https://ipm.ucanr.edu/agriculture/grape/
- New scout photo or PCA label confirms visible powdery mildew.
- Weather shifts into multiple favorable humidity and temperature windows.
- Spray interval ages beyond the effective protection window.
Product not specified: PCA must verify label, REI/PHI, and use rate before any application.Confirm FRAC group and rotate away from recent single-site chemistry.Check worker-entry timing and harvest interval before scheduling.
PCA sign-off
Not signed off.
OutcomeNeeded
No follow-up recorded.
Would you have sprayed this block this week without our recommendation?
Record what happened.HOLD
pca review neededNorth Vineyard
Wine grapes · 6/8/2026
recent humidity data is missing; few recent days were temperature-favorable for mildew; no recent spray date is recorded
Open recommendationGrounded agronomy callHOLD
UC IPM grape guidance supports using powdery mildew risk index, crop stage, and disease pressure to adjust treatment timing.
Draft recommendation: PCA sign-off is still required before this becomes a grower-ready call.Recommendation is usable for pilot review, but field evidence is incomplete.UC IPM Grape Pest Management Guidelines | https://ipm.ucanr.edu/pdf/pmg/pmggrape.pdf
- PM appears during follow-up scouting.
- Humidity/temperature pressure rises before the next weekly call.
- Vision confidence improves from low or missing to confirmed PM.
Product not specified: PCA must verify label, REI/PHI, and use rate before any application.Confirm FRAC group and rotate away from recent single-site chemistry.Check worker-entry timing and harvest interval before scheduling.
PCA sign-off
Not signed off.
OutcomeNeeded
No follow-up recorded.
Would you have sprayed this block this week without our recommendation?
Record what happened.Weekly call sheet
Block, risk, recommendation, and reasoning only.
recent humidity data is missing; few recent days were temperature-favorable for mildew; last spray was 33 days ago; growth stage is sensitive: bloom; confirmed scouting evidence is 15 days old; vision model found no visible powdery mildew, but weather pressure remains elevated
recent humidity data is missing; few recent days were temperature-favorable for mildew; last spray was 25 days ago; growth stage is sensitive: berry set; confirmed scouting evidence is 15 days old; vision model found no visible powdery mildew, but weather pressure remains elevated
recent humidity data is missing; few recent days were temperature-favorable for mildew; last spray was 18 days ago; growth stage is sensitive: pre-bloom; confirmed scouting evidence is 15 days old; vision model found no visible powdery mildew, but weather pressure remains elevated
recent humidity data is missing; few recent days were temperature-favorable for mildew; last spray was 27 days ago; growth stage is sensitive: fruit set
recent humidity data is missing; few recent days were temperature-favorable for mildew; no recent spray date is recorded