Table 2 Severity (%) of downy mildew, powdery mildew and erineum mite evaluated during disease assessments on June, 281 and August, 302.

From: Canopy physiology, vine performance and host-pathogen interaction in a fungi resistant cv. Sangiovese x Bianca accession vs. a susceptible clone

 

Assessment date

Treatment

Disease Severity (%)

Overall Severity (%)

Downy mildew

Powdery mildew

Erineum mite

Leaves

June 281

PS Access

0.00c

0.00b

15.00a

15.00

PS-SG

2.90a

0.00b

2.40b

5.30

FS-SG

0.00c

0.00b

1.65b

0.00

August 302

PS Access

3.70a

1.40b

12.00a

17.10

PS-SG

1.80b

19.00a

3.70b

24.50

FS-SG

0.00c

0.00b

2.07b

0.00

Clusters

June 28

PS-Access

0.00c

0.00c

0.00

PS-SG

3.08b

0.32b

3.39

FS-SG

0.00c

0.00c

0.00

August 30

PS-Access

0.18c

0.05bc

0.23

PS-SG

6.25a

1.76a

8.01

FS-SG

0.00c

0.00c

0.00

  1. Small letters obtained by Fisher protected Least Significant Difference (LSD). Test show significant differences for P < 0.05. PF = partially sprayed. FS = fully sprayed.
  2. 1BBCH 77 berries beginning to touch; 2BBCH 89 berries ripe for harvest; °Brix   18.