Fungicides
Summary
What it is
Common uses
Public Perception
Anxiety level
Cultural claims
Source sentiment
History
Timeline
Origin
Science
Key findings
Studies
Safety status
Nuance
Alternatives
Swaps
Avoidance tips
References

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Fungicides

ingredientContaminants

Total Sources: 48

Verified Claims: 42

Scientific Sources: 19

Summary

Fungicides are pesticides used to prevent and control fungal diseases in crops, seeds, and other plants [1], [6]. They work by killing or inhibiting the growth of fungi, protecting agricultural yields and quality [2], [6], [16].

What it is

Fungicides are chemical substances designed to control or eliminate fungi and fungal spores [6], [16]. They are a type of pesticide, which also includes herbicides, insecticides, and rodenticides [2], [5].

Common uses

  • Protecting crops from fungal diseases [2], [16]

  • Preventing post-harvest decay of fruits and vegetables [13]

  • Seed treatment to prevent fungal infections [6]

  • Controlling fungal growth in lawns and gardens [5]

Public Perception

Anxiety level

Moderate to high. While fungicides are essential for crop protection, there are anxieties related to potential health risks, environmental damage, and the development of fungicide resistance [2], [5], [6], [15], [16].

Cultural claims

  • Conventional agriculture relies on fungicides to maintain high productivity levels [6], [16].

  • Consumers are demanding safer agrochemicals due to environmental and health concerns [16], [20].

Source sentiment

The sources present a mixed sentiment, acknowledging the importance of fungicides in agriculture while also raising concerns about their potential health and environmental impacts [2], [5], [6], [15]. There is a call for stricter regulations, safer alternatives, and more judicious use of fungicides [2], [5], [16], [20].

History

Timeline

1910

The Federal Insecticide Act (FIA) was enacted in the US to regulate pesticide quality and protect consumers from fraudulent products [34].

1940

The toxicity of pesticides increased significantly [23].

1947

The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) was established in the United States to regulate pesticides [17], [18], [34].

1972

FIFRA was significantly revised by the Federal Environmental Pesticide Control Act (FEPCA), expanding the EPA's authority [34].

1996

The Food Quality Protection Act (FQPA) amended FIFRA, requiring the EPA to ensure that pesticide residues would not harm children and infants [18], [20].

2022

France became the first country to ban the export of pesticides that are prohibited in the EU [35].

Origin

The earliest fungicides, such as lime sulfur and Bordeaux mixture, were developed to control powdery mildew on fruit trees and downy mildew on grapes [30], [31].

First appeared: 1800

Science

Key findings

  • Exposure to pesticides, including fungicides, has been linked to neurological, reproductive, and genotoxic effects [5].

  • Certain fungicides can disrupt hormone systems and may be associated with diseases, including cancer [11], [12], [21].

  • Fungicides can negatively impact soil microorganisms and enzyme activity, reducing soil respiration and microbial diversity [8].

  • Some studies suggest that certain fungicides may be associated with a reduced risk of colon cancer, though this finding requires further investigation [7].

Studies

Multi-model risk assessment of pesticide residues in fruits

Chronic cumulative exposure risks from seasonal fruit intake were acceptable, but vulnerable populations face acute hepatotoxicity risks from consuming grapes and peaches. The HI model underestimated acute neurotoxicity and hepatotoxicity risks compared to the RPF model [2].

Non-cancer health effects of pesticides: Systematic review and meta-analysis

Strong evidence of association with pesticide exposure was found for all neurologic outcomes, genotoxicity, and several reproductive effects [5].

Effect of fungicides on soil respiration, microbial community, and enzyme activity: A global meta-analysis (1975–2024)

Fungicides inhibit the abundance, diversity, and enzyme activity of soil microorganisms; however, precise control of fungicide dosage is essential to minimize their toxic effects on soil [8].

The toxicity and health risk of chlorothalonil to non-target animals and humans: A systematic review

Chlorothalonil (CTL) exposure is most often reported to be relevant to allergic reactions to the skin and eyes. CTL can also have toxic effects on rodents and other non-target organisms [14].

Association between pesticide exposure and colorectal cancer risk

No association was observed between exposure to fumigants, fungicides, or herbicides and the risk of CRC. Insecticides may contribute to a reduced risk of colon cancer [7].

Risk Assessment of Exposure to Triazole Fungicides by Human Biomonitoring and Mechanistic Data

Risk assessment for epoxiconazole reveals a potential health risk for both men and women in the exposed group, particularly under the worst-case scenario marked by the highest urinary triazole values, indicative of more intense exposure [11].

Safety status

Fungicides can pose risks to human health and the environment [2], [5], [6], [14], [15]. Some fungicides are classified as endocrine disruptors and potential carcinogens [12], [21], [23].

Nuance

The impact of fungicides varies depending on the specific chemical, exposure level, and individual susceptibility [2], [5], [6], [14], [15]. Some studies suggest potential links between specific fungicides and adverse health outcomes, while others find no significant associations [5], [7], [11], [14].

Alternatives

Organic Produce

Choosing organic produce reduces exposure to synthetic pesticides, including fungicides [20], [42].

Where to find: Supermarkets, farmers' markets, and specialty stores [42, 44].

Biological Farming

Using biologically active natural inputs, such as trichoderma, can help crops grow and fix nitrogen and phosphorus into the soil, reducing the need for synthetic fungicides [22].

Essential Oils

Some essential oils, such as tea tree oil, lemon oil, and lavender oil, have antifungal properties and may be used to treat fungal infections [39].

Where to find: Health food stores, online retailers, and some pharmacies [39].

Avoidance tips

  • Wash produce thoroughly under cold running water for 15-20 seconds [44].

  • Scrub the skins of firm fruits and vegetables with a soft brush [44].

  • Peel fruits and vegetables when appropriate to remove surface residues, though this may reduce nutrient intake [44].

  • Support policies that promote sustainable agriculture and reduce pesticide use [17], [18], [20], [36].

References

1.

https://www.who.int/publications/i/item/9789240099302