Biological control of potato cyst nematodes using plants | Biolosko suzbijanje krompirovih cistolikih nematoda pomocu biljaka
2009
Radivojevic, M., Univerzitet u Beogradu, Beograd - Zemun (Serbia). Poljoprivredni fakultet
Potato cyst nematodes (PCN), Globodera rostochiensis and Globodera pallida are important pests of potato. They are present in most potato growing regions, including Europe. Pesticides were never self-sufficient and sustainable measure for PCN control. Therefore, an integrated control approach is implemented for already decades of combating PCN. Within eradication measures, plants have an important role in several ways. PCN are highly specialized plant root parasites, very competitive in arable land, yet having two weaknesses - limited mobility and host range. Therefore, a logical and also sustainable approach is to let them starve to death in a field, using non host, but sometimes also host plants. Non host crop species are used in crop rotation, including resistant cultivars of host crops species, neither practice tradicionally being regarded as a biological control measure sensu stricto. However, resistant and susceptible potato cultivars, as well as other host or non host plant species may act as trap-crops for nematodes. Optionally, plants or their products may be used to just provoke faster emergence from cysts and subsequent death of dormant PCN infective juveniles if the absence of host plants. The later practices directly exterminate pests and merit a status of biological control measures.
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