Dal 2020 i coltivatori americani di canapa potranno utilizzare alcuni prodotti di difesa delle colture. L’EPA infatti ha autorizzato l’impiego di 9 biopesticidi e di un pesticida convenzionale per le colture di canapa (ma non di marijuana). Si tratta dei primi mezzi tecnici autorizzati specificamente per la canapa. La maggior parte dei bioprodotti approvati è a base di olio di neem e azadiractina (altro prodotto estraibile dal seme di neem) con funzione insetticida. I fungicidi sono a base di un batterio, il Bacillus amyloliquefaciens, e dell’estratto di una pianta della Siberia orientale, la Reynoutria sachalinensis. Il prodotto convenzionale è a base di saponi molli (sali potassici di acidi grassi).
Lista dei prodotti approvati dall’EPA
Biopesticidi
- EPA registration number: 70310-5. Applicant: Agro Logistic Systems. Active ingredients: Azadirachtin and neem oil. Product type: Insecticide, miticide, fungicide and nematicide.
- EPA registration number: 70310-7. Applicant: Agro Logistic Systems. Active ingredients: Azadirachtin and neem oil. Product type: Insecticide, miticide, fungicide and nematicide.
- EPA registration number: 70310-8. Applicant: Agro Logistic Systems. Active ingredients: Azadirachtin and neem oil. Product type: Insecticide, miticide, fungicide and nematicide.
- EPA registration number: 70310-11. Applicant: Agro Logistic Systems. Active ingredient: Neem oil. Product type: Insecticide, miticide and fungicide.
- EPA registration number: 84059-3. Applicant: Marrone Bio Innovations, doing business as Marrone Bio Innovations. Active ingredient: Extract of Reynoutria sachalinensis. Product type: Fungicide and fungistat.
- EPA registration number: 84059-28. Applicant: Marrone Bio Innovations, dba Marrone Bio Innovations. Active ingredient: Bacillus amyloliquefaciens strain F727. Product type: Fungicide.
- EPA registration number: 91865-1. Applicant: Hawthorne Hydroponics, dba General Hydroponics. Active ingredients: Soybean oil, garlic oil, and Capsicum Oleoresin extract. Product type: Insecticide and repellent.
- EPA registration number: 91865-3. Applicant: Hawthorne Hydroponics, dba General Hydroponics. Active ingredient: Bacillus amyloliquefaciens strain D747. Product type: Fungicide and bactericide.
- EPA registration number: 91865-4. Applicant: Hawthorne Hydroponics, dba General Hydroponics. Active ingredient: Azadirachtin. Product type: Insect growth regulator and repellent.
Convenzionali
- EPA registration number: 91865-2. Applicant: Hawthorne Hydroponics, dba General Hydroponics. Active ingredient: Potassium salts of fatty acids. Product type: Insecticide, fungicide and miticide.