Skip the header
Open access
Pest Management Decision Guide
1 February 2016

Gummy Stem Blight on Christophene (Sechium edule)-Trinidad and Tobago.: Didymella bryoniae (Anamorph: Phoma cucurbitacearum);

Pest Management Decision Guides
20197800004
0
0
0
0
Smart Citations
0
0
0
0
Citing PublicationsSupportingMentioningContrasting
View Citations

See how this article has been cited at scite.ai

scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.

Pictures

Gummy Stem Blight symptoms on leaves (Aldo Hanel, CABI)
Open in viewer
Initial symptoms on Christophene fruit (Sechium edule) (Aldo Hanel, CABI)
Open in viewer

Prevention

Gummy Stem Blight is seed borne. Seed should be obtained from reliable sources or treated before planting with (0.1%) carbendazim or COC (see restrictions in yellow control column).
The fungus can survive in dead tissues for up to 3 years, so it is recommended to burn any leftovers from infected crops.
The fungus often enters through wounds, so have good pest control to avoid mechanical damage to the plant.
Avoid overcrowding the field to control levels of humidity that favors the fungus.
Drip irrigation is recommended over sprinklers to avoid the fungus spreading through splashing water.
Replant healthy seeds after three years as younger plants are more resistant.

Monitoring

Regular scouting of the field twice a week to look for symptoms on leaves and fruits.
Search for abnormal circular spots on the leaves. As the disease progress these eventually dry up.
Look out for circular spots (Bullet Holes) on the fruits as an initial symptom.
As soon as symptoms are identified, direct control measures should be taken.

Direct Control

Avoid overhead irrigation.
Prune and burn infected leaves and fruits.

Restrictions

Always use the recommended safety measures.

Direct Control

Tebuconazole and Triadimenol

Both chemicals: FRAC 3 and WHO Class II. PHI 14 days.

Boscalid and Pyraclastrobin

FRAC 7+11. Boscalid: WHO Class U. Pyraclostrobin: WHO Class III. PHI 7 day.

Chlorothalonil

FRAC M. WHO Class Chlorothalonil U. PHI 7 days.

Carbendazim

FRAC 1. WHO Class U. PHI 14 days.

Information & Authors

Information

Published In

cover image PlantwisePlus Knowledge Bank
Pest Management Decision Guides
Pest Management Decision Guide: Green and Yellow List

Applicable geographic locations

North America,  Trinidad and Tobago

History

Published online: 1 February 2016
Issue publication date: 1 January 2017

Language

English

Authors

Affiliations

Metrics & Citations

Metrics

VIEW ALL METRICS

SCITE_

0
0
0
0
Smart Citations
0
0
0
0
Citing PublicationsSupportingMentioningContrasting
View Citations

See how this article has been cited at scite.ai

scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.

Citations

Export citation

Select the format you want to export the citations of this publication.

EXPORT CITATIONS

View Options

View options

PDF

View PDF

Media

Figures

Gummy Stem Blight symptoms on leaves (Aldo Hanel, CABI)
Initial symptoms on Christophene fruit (Sechium edule) (Aldo Hanel, CABI)

Other

Tables

Share

Share

Copy the content Link

Share on social media

References

References

View figure
Gummy Stem Blight symptoms on leaves (Aldo Hanel, CABI)
View figure
Initial symptoms on Christophene fruit (Sechium edule) (Aldo Hanel, CABI)
Skip the navigation