Pest pressure and disease reduce tomato greenhouse yields in Paraná
Source: HD.com
Pest pressure and disease reduce tomato greenhouse yields in Paraná Pest pressure and disease reduce tomato greenhouse yields in Paraná In Northern Paraná (PR), Brazil, producers of greenhouse-grown tomatoes with year-round production continue to report higher pest pressure, particularly from whiteflies and leafminers.
However, the impact was mitigated as, in the 2026 season, growers invested more in resistant or tolerant varieties to the virus to limit production losses. As a result, crops more affected by geminivirus and bacterial canker recorded average yields of around 350 boxes per thousand plants.
Why this matters: This matters when it gives operators a clearer way to manage water, nutrients, and root-zone risk. That kind of control usually improves both resource efficiency and crop consistency.
Frequently Asked Questions
What should growers evaluate before changing a lighting strategy?
They should look at crop type, canopy structure, current light distribution, energy cost, expected yield gain, and whether the new strategy improves whole-canopy efficiency.
Why is light distribution often as important as light quantity?
Because adding more photons to already saturated leaves does less work than improving how light reaches the parts of the canopy that are still underperforming.
