Heat
Heat
Hot, dry spells take a toll on plant health and yield. Heat Shield supports stress tolerance from within.
Crop stress protection
Heat Shield helps crops stay productive when weather and soil stress hit.
Heat Shield is a living biological treatment built from endophytic fungi selected from high-stress environments. These beneficial fungi live inside the plant and help it adapt when heat, cold snaps, drought, heavy metals, or salinity threaten yield potential.
Application
Apply by sprayer, drone, irrigation, or foliar pass.
Living fungi
Not a chemical - living fungal biology that helps beneficial endophytic fungi live inside the crop.
Stress support
Supports resilience through heat, cold, drought, heavy metals, and salt stress.
Separate pass
Use separately from chemical tank mixes so the living biology stays protected.
Season-long stress support
Protection against stress every season
Endophytic fungi are beneficial fungi that live inside the plant. Heat Shield helps the crop adapt from the inside when weather and soil conditions turn harsh.
Cold
Cold
Cold snaps and temperature swings can slow crop performance. Heat Shield also supports low-temperature emergence.
Drought
Drought
Drought is an abiotic stressor that can hold back plant health and yield during tough seasons.
Salinity
Salinity
Salty soils create abiotic stress that can reduce plant health, yield, and season-long resilience.
Heavy Metals
Heavy Metals
Heavy metals in soil can create abiotic stress that interferes with plant health, root function, and yield potential.
What it helps protect against
Heat Shield supports crop performance during abiotic stress, including hot, dry spells, cold snaps, drought, heavy metals, and salty soils. Its endophytic fungi live inside the plant and help the crop adapt from within. In simple grower language, it is biological crop stress protection for tough weather and soil conditions.
- Helps reduce the impact of heat stress on plant health and yield.
- Field trials have shown canopy temperature reductions up to 10 degrees.
- Supports crops through cold snaps, temperature swings, and challenging soil stress.
- Helps plants maintain growth under drought, heavy metals, and salt stress.
- On irrigated acres, may help growers use 25% to 50% less water while maintaining similar or better yield, depending on field conditions.
- Supports plant resilience over the course of the growing season.
- Helps defend yield potential when stressful heat threatens the crop.
- Fits into fertility programs and microbial treatments when applied separately as directed.
Why a separate pass matters
Heat Shield is not a chemical. It is a live fungal culture that helps beneficial endophytic fungi live inside the crop, where they support stress adaptation from within. Direct Biologicals recommends not mixing Heat Shield with any chemical. If you want to evaluate a tank mix, contact a Direct Biologicals representative first to confirm which chemicals may be compatible.
- Use through a sprayer, drone, irrigation, or foliar pass as a separate biological application.
- Do not mix Heat Shield with chemicals unless a Direct Biologicals representative has confirmed compatibility.
- Avoid chlorinated rural water unless it has been de-chlorinated according to product specifications; well water is preferred.
- Use proactively around heat, cold, drought, heavy-metal stress, or salt-stress windows.
Frequently asked questions
Frequently Asked Questions About Heat Shield
Does Heat Shield really help during hot and dry conditions?
Heat Shield is designed to improve crop tolerance to heat and drought and help protect yield potential during stressful weather. Field testing has shown lower canopy temperatures in treated crops.
Can Heat Shield help if my crop is already showing heat stress?
It can still be applied as an in-season foliar treatment after stress begins. However, earlier application gives the crop a better opportunity to prepare for continued hot conditions.
What kind of return can I expect?
Results depend on the crop, application timing, field conditions, and the amount of stress experienced during the season. Heat Shield is designed to help protect yield potential when heat and drought would otherwise reduce crop performance.
How many acres does one bottle treat?
One 4-ounce bottle treats 40 acres when applied in-furrow or foliarly, or 80 acres when used as a seed treatment.
Heat Shield inquiry
Build your crop stress plan.
Share your crop, acres, and primary stress concern. A Direct Biologicals specialist will help you evaluate timing, application, carrier water, and where Heat Shield fits your operation.
Ready to talk Heat Shield?
Talk with Direct Biologicals about crop stress protection, chemical compatibility, carrier water, and where Heat Shield fits in your biological stress management plan.