Resistance to pests and pathogen is more and more becoming a major challenge in agriculture and horticulture worldwide . Resistance happens when a pest or disease builds up a margin and becomes resistant to a specific chemical , rendering the product ineffectual .
According to Irene de Bruijn , Team Lead Microbial Profiling at Koppert , resistance can occur when a grower repeatedly uses a Cartesian product with the same chemical mechanism of action . A mechanism of action is the way a crop protective cover product controls a pest or disease . For instance , if a crop protection production blocks only one characteristic of the pest , there is an increased risk of resistance development .
Resistance to pestilence and disease : what happens?“The individual pest and diseases themselves do not become resistant , but the universe adjust through modest changes in their DNA . For example , when pests resistant to chemicals reproduce , they pass on their genetic composition to their offspring , and their offspring in turn are more potential to be tolerant to the chemical , " Irene explains . " We see the most electric resistance in crop grown in monoculture , where crop are acquire in large routine with a high universe of pests and disease . The quicker the life story cycle of the pest or disease , the higher the likeliness of electric resistance . "
Why is constitutive harvest protection different?Biological harvest protection is a instinctive physique of pestilence and disease control , and the very small likeliness of resistance is one of the main advantages of including biological crop protection in a comprehensive IPM strategy . Many biologic crop protective covering products often have multiple mechanism of action . For representative , fungi can develop into pest organisms and suffocate them . Beneficial insects and hint can prey on dissimilar sprightliness stages of a pestis and can actively seek them out in hard - to - turn over situation . Each clip a cultivator use a dissimilar way of action , the pestilence has to develop a new way to counteract harvest protection .
A good exercise is Trianum ( Trichoderma harzianum ) , which has multiple manner of action . Trianum defend the plant against soilborne pathogens by forming a roadblock around the roots and attacking pathogen through mycoparasitism . It also improves the root system of rules by forming more theme hairs so that H2O and nutrient can be better imbibe . This lead to a stronger and more consistent harvest and right yields . This essence is strong when the plant is under stress and/or grown under less than optimal condition . Trianum also strengthen the defense mechanisms of above - ground plant component , called induced systemic resistance ( ISR ) , and farm compounds that break down the cell wall of fungal diseases .
succeeding part of biological crop protectionIrene stresses that it is important for a cultivator to include multiple modal value of action mechanism in a impedance scheme . Biological harvest protective covering should be part of a comprehensive IPM strategy . agriculturalist need to understand their harvest and associated pest and disease well . " A undecomposed app scheme is very crucial for in effect biologic crop security . Growers need to know how and when to apply agents , at the right time and at the correct dosage . prophylactic measures such as crop rotation and good hygiene also contribute to effective crop protection within IPM . reckon at the future part of constitutional crop protection , specially in light of growing fear about pesticide resistivity in agriculture and gardening , Irene emphasise that it is crucial for the constituent crop protection industry to learn from the development of resistance to chemicals . IPM is very important , and we necessitate to develop a in force strategy and ensure that we continue to cater biologicals establish on multiple mechanism of military action . "
" conflate different strategies and compounds , include micro and macro agents that target the same pest but have unlike mechanisms of activity . This will finally strengthen control and reduce opposition , " conclude Irene .
For more selective information : KoppertVeilingweg 142651 BE Berkel en Rodenrijs , the NetherlandsTel : +31 ( 0 ) 10 514 04 44[email protected]www.koppert.nl
