tangolias in the arena and you may shop by attracting male grownups. They truly are regularly select the first presence out-of S. tangolias to get adequate manage.
Ancient biological handle. Classical physical manage would be an effective method in every men and women countries where in actuality the insect could have been accidentally produced to save new pest population underneath the control tolerance (described during the area 4.step one.step 1, P. operculella).
Keeping track of having pheromone barriers
Stop infestation out of insect-free potato-growing zones. Plagued seed products facilitates the latest punctual bequeath of the pest that will be a prime source of initial infestation in potato areas. Thus, pest-100 % free seed tubers must be rooted.
Sufficient hilling. In this field, larvae need go into the crushed to arrive the potato tubers. The brand new infestation out-of potato tubers minimizes toward breadth when you look at the floor where it make. Hence potato tubers should be secured better having crushed through the the whole cultivation months.
Avoid lifeless ground criteria. Dry weather standards like multiplication of S. tangolias around because quantity of egg laid decreases highly that have large surface moisture; larvae block inside extremely wet soil too. The sowing time will likely be modified to end long stretches away from dry-weather, particularly in this new days in advance of accumulate. If there is more compact precipitation, sprinkler irrigation can be used to dampen the fresh crushed.
Quick and you will over amass. High tuber damage in the secure has been seem to for the reason that postponed harvests in conjunction with dry weather conditions that enable several generations growing in the field. While in the dry symptoms, quick accumulate is extremely important to avoid tuber infestation (the brand new larvae move from brand new stems towards tubers in the event the bush wilts). Early-maturing species can also be subscribe reduce the chance of infestation. Remaining tubers (volunteer plants) are often infested from the S. tangolias, taking a source of re also-infestation and require to be removed from industry.
Clean stores place. Plagued potato places include contaminants to have tubers stored just after collect plus in related areas and you may places. Ahead of potato tubers was held, the stores have to be removed carefully. Eggs, larvae, and you can pupae frequently utilized in breaks of structure, the fresh new ground, or even in handbags otherwise packets employed for shops should be eliminated. Just suit tubers will be selected to have storage.
Physiological handle. When you look at the Peru, a dust materials out of Bacillus thuringiensis is utilized to protect tubers inside the shop up against https://datingmentor.org/italy-herpes-dating/ S. tangolias. B. thuringiensis var. kurstaki is effective facing S. tangolias. New abrasive effect of different kinds of powders (kaolin, calcium carbonate, otherwise others), the foundation of your materials, and kills more youthful larvae due to the real defensive capacity off the fresh powder. Potato tubers are handled (powdered) actually immediately after secure and you will placed in sites.
Attract-and-eliminate applies at the an occurrence of a single miss (a hundred µl)/yards dos out-of space for storage to minimize a man population and and this tuber infestation.
It is an oil ingredients on pest’s sexual pheromone and you can contact insecticide because substances, which are applied at the a thickness out-of dos,500 droplets (one hundred µl)/ha in the world to minimize the male populace and therefore leaf and you may tuber infestation
Dangles, O., Yards. Herrera, and you may F. Anthelme. 2013. Fresh assistance of the worry-gradient hypothesis for the herbivore-herbivore interactions. New Pathologist 197: 405–408.
Dangles, O., Meters. Herrera, C. Mazoyer, and you may J.-F. Silvain. 2013. Temperature-situated shifts from inside the herbivore abilities and you may connections push nonlinear alterations in crop damages. In the world Alter Biology 19: 1056–1063.
Dangles, O., V. Mesias, V. Crespo-Perez, and you will J.-F. Silvain. 2009. Pick wreck expands with insect kinds assortment: proof off potato tuber moths regarding the exotic Andes. Journal away from Used Ecology 46: 1115–1121.