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Table 2 Severity of soft rot caused by confirmed isolates of Pectobacterium carotovorum on different hosts

From: Molecular detection of the causative agent of the potato soft rot, Pectobacterium carotovorum, in Egypt and essential oils as a potential safe tool for its management

Host species

Organ

Bacterial isolates

1

2

3

4

5

6

7

8

9

10

  

Potato (Solanum tuberosum)

Tuber

+++

++

++

+

+++

+

++

++

++

+++

  

Sweet potato (Ipomoea patats)

Root

+++

+

++

++

+++

++

++

+

++

+++

  

Carrot (Dacus carrot)

Root

+++

+

+

++

+++

+

++

++

++

+++

  

Squash (Cucurbita pepo)

Fruit

+++

+

++

+

+++

+

+

+

++

+++

  

Sugar beet (Beta vulgaris)

Root

+

+

+

  
  1. Severity of soft rot symptoms was assessed visually according to Lelliott and Stead (1987) as follows: (−) negative infection, (+) low infection, (++) moderate infection, and (+++) high infection