In Sweden, several unofficial observations tell of a drop in effect from strobilurin use against early blight, but it has so far not been clarified whether this is due to F129L or not. The mutation slightly alters the protein by an amino acid substitution called F129L, and has since its first being described in the US arrived in Europe through Germany. Studies have shown that this is due to an acquired resistance against the fungicide, linked to a mutation in the gene encoding the protein cytochrome b. These have been potent in limiting the spread of the disease for a long time, but in the last decade reports have emerged from several countries, speaking of a drop in efficacy. In Sweden, this disease is caused primarily by the fungus Alternaria solani, and is treated with fungicides containing a chemical called strobilurin. Early symptoms include dark spots of dead cells that will grow and merge to cover the entire leaf. This disease is common in Swedish potato farming, and mainly attacks the leaves. One example of such a fungal disease, which traditionally has been countered by pesticides, is early blight on potato. In the end, this will make the chemical useless. In this way, resistance is strengthened with every treatment that does not completely eradicate the pathogen. The next time the disease is to be treated, the causal fungi will mainly be the progeny of those resistant individuals, which will require a larger dosage of pesticides to acquire the desired antimicrobial effect. Each time the active substance is used, it is thus likely that a few of the latter survives to reproduce again once the treatment is finished. All kinds of antimicrobial processes will first kill the most susceptible individuals, while the more resistant ones survive longer. First and foremost however, their antibiotic properties themselves will in the long run cause them to lose their wanted efficacy. For one thing, their long-tem environmental effect is hard to foresee, and the practical handling and manufacture might be harmful to humans. Pesticides beget resistanceĬhemical antibiotics have in many regards been a condition for the population boom the world has experienced over the past century, but its use is not without risks or complications. Even though other methods are emerging, this management is still to its greater part conducted through the use of chemical pesticides. To deal with this issue, pest management is a necessity in any type of large-scale farming. This strategy is unfortunately very susceptible to opportunistic pests and pathogens, which, aided by agricultural practices, are given access to fresh hosts to an extent a natural ecosystem never would provide. A prerequisite to this is monocultural farming the same crop over large areas at once. It does not store any personal data.Our food production is fundamentally reliant on industrialized and efficient agriculture. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly.
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