89 % reduction of a potato cyst nematode population using biological control and rotation
Summary (1 min read)
1 Introduction
- In the region of Cofre de Perote in Veracruz, Mexico, chemical control has produced poor results, and as a consequence of the potato monoculture, populations of this nematode have increased in some fields to more than 6,000 cysts kg soil−1 since initial detection in 1983 (Desgarennes et al. 2006).
- For this reason, the implementation of integrated management that includes the control of this pest with agroecological methods such as biological control and crop rotation has been suggested (Lichtfouse et al. 2009).
- Eight such composite samples were taken throughout the experiment (N0160), samples 1 to 4 taken during the first crop cycle (pea) with samples 5 to 8 taken in the second cycle (bean).
3 Results and discussion
- An average of 203±75 cysts were found per 100 ml soil in the experiment plots at the beginning of the experiment.
- The authors results from the rotation treatment plots concur with other studies that have shown populations decreasing by up to 40% after the second year of crop rotation in the absence of the host potato (Devine et al. 1999).
4 Conclusions
- The authors recommend the initial sanitizing of the soils in highly infected areas prior to sowing new potato crops.
- This strategy opens the possibility of rehabilitating and reactivating areas that are suitable for potato cultivation but are under quarantine at present.
- At the same time, the lack of impact on free-living nematodes by the biological control agent can still permit the biological diversity necessary for nutrient cycling.
- The first author is grateful for the support provided by CONACyT by provision of a grant (350758/ 238341) to carry out postgraduate study (Masters in Agriculture and Natural Resources) in the Universidad Autónoma del Estado de México.
- Grateful thanks also go to the technician Magda Gómez for her help in the laboratory.
Did you find this useful? Give us your feedback
Citations
34 citations
33 citations
28 citations
28 citations
17 citations
Cites background from "89 % reduction of a potato cyst nem..."
...In fact, Paecilomyces carneus nematicidal potential has already been shown in the field against G. rostochiensis (Lopez-Lima et al., 2013)....
[...]
References
137 citations
Additional excerpts
...Integrated management can favor the control of pests through the combination of diverse control methods, since this enhances the efficacy of each method on its own (Gurr et al. 2004)....
[...]
134 citations
"89 % reduction of a potato cyst nem..." refers background in this paper
...This indicates that the tillage and sowing of the crop has an influence on the reduction of free-living nematode numbers, as has been shown in a study focused on tillage effects on soil organisms (Govaerts et al. 2006)....
[...]
120 citations
"89 % reduction of a potato cyst nem..." refers background in this paper
...…of these chemicals in the soil, there are many problems associated with their use; these include their negative effect on beneficial organisms (Haydock et al. 2006) and the fact that they can contaminate groundwater, and because of their residual effect (120 days), they can remain in the…...
[...]
...Moreover, due to the high mobility of these chemicals in the soil, there are many problems associated with their use; these include their negative effect on beneficial organisms (Haydock et al. 2006) and the fact that they can contaminate groundwater, and because of their residual effect (120 days), they can remain in the tuber until after harvesting, representing a risk not only to the farmers who apply these chemicals in the fields but also to the end consumers of the product (Mendes et al....
[...]
Related Papers (5)
Frequently Asked Questions (2)
Q2. What future works have the authors mentioned in the paper "89 % reduction of a potato cyst nematode population using biological control and rotation" ?
This strategy opens the possibility of rehabilitating and reactivating areas that are suitable for potato cultivation but are under quarantine at present. These practices can be relatively easily incorporated by producers into the system of potato production that exists at present.