Science & Tech · Science & Environment · 4 hrs ago
DNA edit cuts cacao disease damage by 42% in lab tests
Penn State scientists developed cacao with stronger disease resistance using gene editing and traditional breeding.
A change to two DNA letters cut black pod disease by about 42% in laboratory tests.
Black pod disease affects cacao crops worldwide and is estimated to reduce yields by about 30%.
Cacao farmers also face changing weather that can worsen growing conditions and disease pressure.
The researchers say the method does not leave foreign DNA in the final plant.
The variety is moving toward field testing before possible commercial production.
A two-letter DNA edit reduced black pod disease damage in cacao by about 42% in laboratory tests.
Penn State scientists combined gene editing with traditional breeding to strengthen cacao’s natural defenses.
Black pod disease is estimated to reduce cacao yields by roughly 30% worldwide.
The researchers’ results are moving toward field testing and possible commercial production.
- Who
- Scientists at Penn State developed the cacao variety.
- What
- A two-letter DNA edit reduced black pod disease damage by about 42% in laboratory tests.
- When
- The article was published on November 4, 2026.
- Where
- The tests were conducted under laboratory conditions; the researchers are at Penn State.
- Why
- The researchers aim to help growers reduce cacao losses and respond more quickly to disease and environmental challenges.
This story does not have two clearly opposing sides.
SciTechDaily published its report on laboratory results showing reduced black pod disease damage in cacao.
The results are moving toward field testing and possible commercial production.
- DNA change
- Two letters
- Disease damage reduction
- About 42% in laboratory tests
- Global yield loss
- Black pod disease is estimated to reduce cacao yields by roughly 30%
- Research institution
- Penn State
- Next step
- Field testing and possible commercial production
What people are saying
Our goal is to develop tools that help growers continue producing cacao sustainably and profitably.
Cacao evolved in a very stable rainforest environment.
One of our goals is to develop tools that help breeders respond more quickly to those challenges.