Pesticides: Between Risks and Alternatives in 2025

The discussion about pesticides remains heated in 2025, dividing opinions among producers, scientists and consumers.

While some defend its effectiveness in combating pests, others warn of the impacts on health and the environment. But are there safer ways?

In recent years, the debate has taken on new dimensions. Demand for cleaner food has grown, putting pressure on governments and companies to rethink agricultural models.

In Brazil, the world’s third largest consumer of pesticides, the tension between productivity and sustainability has never been so evident.

Technological advances and regulatory changes are transforming the landscape. Countries such as France and Germany have already reduced the use of certain chemicals by 50% in the last decade.

Meanwhile, small Brazilian farmers are experimenting with ancestral techniques combined with innovation.

The challenge is complex: how to feed a growing population without poisoning the soil, water and people? The answer may lie in the balance between science, politics and collective consciousness.

The Invisible Risks on the Plate

A study by Fiocruz (2024) linked chronic exposure to certain pesticides to hormonal and neurological disorders. Residues of these substances have been detected in foods such as tomatoes and lettuce, even after washing.

Europe, for example, has banned glyphosate in organic crops, while Brazil is still debating its widespread use.

Imagine a game of dominoes: when an insecticide contaminates the soil, it affects microorganisms, plants, animals and, ultimately, those who consume these products. The chain is silent, but its effects are real.

The problem is made worse by aerial spraying, which is still common in large soybean and sugarcane plantations.

Winds carry particles to neighboring communities, where residents report headaches and allergies after applications.

In Mato Grosso, a survey by UFMT associated high exposure to pesticides with an increase in cancer cases in rural areas.

In addition to human health, biodiversity is suffering. Bees, essential for pollination, are dying en masse due to neonicotinoids. Without them, crops such as apples and coffee could collapse.

Read more about: How to prevent fungus in pots with plants that like humidity

Alternatives that are gaining ground

Innovative producers are already adopting techniques such as biological control, using beneficial insects to combat pests.

In the interior of São Paulo, a farm reduced 70% of water use pesticides when introducing ladybugs into citrus cultivation.

Another example comes from India, where biodynamic farming increased productivity in 20% without synthetic chemicals.

Crop rotation and the use of biofertilizers also show promising results.

Companies like Embrapa invest in research to make these practices viable on a large scale.

In the Netherlands, vertical hydroponic farms dispense with pesticides altogether, producing leafy greens with 90% less water.

In Brazil, the startup Cromai has developed an artificial intelligence system that identifies pests before they spread, allowing for targeted interventions.

Family farmers in the Northeast are reviving the use of repellent plants, such as neem and rue, in combination with food. This technique, inherited from traditional peoples, protects crops without contaminating the water table.

The Economic Dilemma and the Pressure for Change

Large monocultures still rely on pesticides to ensure profitability. However, the environmental cost is becoming non-negotiable.

A UN report (2025) estimates that soil degradation by pesticides will cost the global economy US$23 trillion by 2050 if nothing changes.

Consumers are also pushing for transparency. Platforms like allow us to see where our food comes from, encouraging conscious choices.

Food companies are reviewing contracts with suppliers that use highly toxic pesticides. Nestlé, for example, has set targets to eliminate glyphosate from its supply chain by 2030.

However, the transition is slow. Small farmers face difficulties in accessing credit and technology. Without efficient public policies, the shift to sustainable models remains uneven.

The Role of Technology in Chemical Reduction

IoT sensors are already monitoring pests in real time, reducing unnecessary applications. Drones equipped with multispectral cameras are identifying areas of stress in plants, allowing for targeted treatments.

Read more: The Importance of Correct Water Management in Agriculture

In California, wineries use algorithms to predict fungal outbreaks, applying only the minimum amount of pesticides necessary.

In the Brazilian Cerrado, farmers are testing biofilms made from chitosan, a natural polymer that protects seeds without harming the soil.

Gene editing also comes into play. Researchers at Esalq have developed bean varieties that are resistant to whitefly, reducing the need for insecticides.

But the technique still faces resistance from groups opposed to GMOs.

Conclusion: The Future is Less Chemical and More Intelligent

The answer does not lie in completely abandoning pesticides, but in the right dosage and integrated alternatives. IoT sensors already monitor pests in real time, reducing unnecessary applications.

In 2025, the question is not just “to use or not to use” pesticides“, but how to balance productivity and sustainability. The road is long, but each conscious choice brings agriculture closer to a safer model.

Do you know what's on your plate today?

Governments, businesses and consumers need to act together. While industry invests in clean solutions, the government must monitor and encourage good practices.

And we, as a society, can vote with our fork, preferring responsibly produced food.

Read here: How to Make the Ideal Substrate for Ferns with Homemade Ingredients

Frequently Asked Questions

1. Does washing food thoroughly remove all pesticide residue?
Not completely. Some substances penetrate the plant tissue. Peeling and cooking help, but the best option is to opt for organic when possible.

2. Are organic products 100% pesticide free?
Not necessarily. They don't use synthetics, but they can use natural pesticides, such as pyrethrin. The difference lies in toxicity and environmental impact.

3. Is Brazil lagging behind in regulating pesticides?
Yes. While the EU bans substances such as atrazine, they are still permitted here. Anvisa is working on re-evaluations, but the process is slow.

4. Is agriculture without pesticides less productive?
It depends. Techniques such as agroforestry can have similar yields to monocultures, with the added bonus of diversity and soil health.

5. How can I support pesticide reduction?
Buy from small producers, demand clear labeling and participate in organic fairs. Collective pressure moves markets.