Case
Tomato leaf spot
A 30-day Lingnan University field trial measured the effect of a pineapple-waste eco-enzyme on infected tomato plants.
Tomato leaf-spot lesion area
What was tested
Dr Jack Chi-Ho Ip’s group in Lingnan University’s Science Unit tested a pineapple-waste eco-enzyme on infected tomato plants in a 30-day field trial. Wong Chin Ming is a named collaborator.
What was measured
Lesion area fell by 74.6%. Chlorophyll content and photosynthetic efficiency (Fv/Fm) were restored to healthy levels.
How it appears to work
High-throughput sequencing showed that the treatment enriched beneficial bacteria (Pseudomonas, Bacillus and Paenibacillus) on the leaf surface and in the soil, and suppressed the Mycosphaerellaceae family and Cladosporium. The researchers attribute the effect to antimicrobial metabolites from Lactobacillus fermentation and to induced systemic resistance in the plant.
What we do not claim
- This result is for tomato leaf spot, not for viral disease.
- It is one 30-day field trial. It is not a yield figure.
- It is reported separately from the fish-feed result, which ran on a different species and timeline.
Sources
- Lingnan University Science Unit, Dr Jack Chi-Ho Ip
- Lingnan University Science Unit