Bacterial Disease Management
How AgriPhage® Rotation Strengthens Your IPM Program
We’d Love to Replace Copper and Antibiotics—But Rotation is the Smarter Play
Experienced growers know there’s no silver bullet for bacterial disease management. Copper and antibiotics have long played a critical role in fruit and vegetable production—and for good reason. However, over time, their effectiveness has declined due to resistance, regulatory limits, and the unintended consequences of overuse, including soil toxicity and residue concerns.
We’d love to say it’s time to replace these tools entirely. But that’s not the reality for most commercial operations. The crops are too valuable, the timelines too tight, and the risks too high to walk away from proven inputs.
What many growers are doing instead is taking the next smart step: Rotation. Not just for herbicides and fungicides—but for bacterial disease control, too.
The Limits of Copper and Antibiotics
Copper remains a foundational component of disease control in crops such as tomatoes, peppers, stone fruit, and citrus. But in many regions, bacterial resistance has taken hold. Overuse has also led to copper accumulation in soil, which degrades microbial life and reduces long-term productivity.
Antibiotics like streptomycin and oxytetracycline, often used in apples and pears, now face growing resistance issues and tighter regulation. Growers are increasingly forced to reevaluate how often—and how long—they can rely on them.
The goal isn’t to abandon these tools. It’s to protect and extend their effectiveness. That’s where AgriPhage® fits in.
AgriPhage in Rotation: Making IPM Stronger
AgriPhage Bactericides uses bacteriophages—natural viruses that selectively target harmful bacteria without affecting beneficial microbes or the environment. They offer a new mode of action, one that doesn’t leave behind residue or contribute to resistance across multiple product classes.
When rotated into an IPM program, AgriPhage helps reduce resistant bacterial populations and lowers the pressure on copper and antibiotics. It doesn’t replace these tools—it helps them work better, for longer.
Traditional IPM Program
- Heavy reliance on copper and antibiotics
- Growing resistance over time
- Copper accumulation in soil
- Limited late-season options
- Higher risk of microbial imbalance
IPM + AgriPhage® Rotation
- Rotates phages with copper/antibiotics
- Targets resistant bacteria
- Protects soil microbiome
- Safe for late-season use
- Extends life of traditional tools
Real-World Rotation in Action
- Tomato producers in resistance-prone regions apply AgriPhage Spot & Speck Bactericide early in the cycle to manage copper-resistant strains and reduce total copper load.
- Stone fruit operations integrate AgriPhage Peach Spot Bactericide throughout the season, especially during the final 45-day preharvest window when other products may be restricted or phytotoxic.
- Apple growers alternate AgriPhage Fire Blight Bactericide with antibiotics to maintain efficacy while reducing resistance pressure during bloom and high-risk infection periods.
In each case, AgriPhage Bactericides helps preserve the value of existing inputs and improves overall program reliability.
Rotation Isn’t a Compromise—It’s Progress
Take the First Step
No one changes a program just because something new comes along. You make a change when the economics, agronomics, and long-term outcomes line up.
AgriPhage isn’t about replacing what you know. It’s about reinforcing it—making it last, making it smarter.
If you’re planning for the future, rotation is the right direction.