tangolias worldwide and you can store because of the attracting male people. They can be familiar with choose early visibility out-of S. tangolias so you’re able to simply take enough control.
Ancient physiological control. Classical physiological handle would be a means in most those people regions where pest might have been inadvertently lead to keep new insect population underneath the handle threshold (demonstrated in the point cuatro.step one.step one, P. operculella).
Monitoring with pheromone barriers
Prevent infestation away from insect-totally free potato-expanding zones. Infested seed encourages the timely give of pest and is a prime source of 1st infestation within the potato fields. Therefore, pest-free seed tubers must be grown.
Adequate hilling. On the planet, larvae need certainly to go into the ground to reach the brand new potato tubers. The fresh infestation regarding potato tubers minimizes on depth inside the surface where they produce. Thus potato tubers must be covered well that have floor through the the complete cultivation months.
End dry soil standards. Dry-weather conditions like multiplication out of S. tangolias in the arena as the amount of egg applied decreases highly with highest soil dampness; larvae drown in the extremely moist soil too. The planting day are going to be adjusted to avoid very long periods out of dry-weather, especially in the brand new days prior to collect. If there’s modest precipitation, sprinkler irrigation can be used to moisten the latest surface.
Punctual and you can done compile. High tuber ruin within amass could have been apparently due to put off harvests in conjunction with dry-weather conditions that enable several years growing in the field. While in the deceased attacks, fast secure is a must to quit tuber infestation (new larvae move from the stems with the tubers in the event the bush wilts). Early-maturing varieties is also subscribe to slow down the risk of infestation. Kept tubers (volunteer herbs) are often plagued because of the S. tangolias, providing a way to obtain re-infestation and want to be taken from industry.
Brush shop facilities. Infested potato locations contain contaminants to own tubers stored immediately following collect along with surrounding fields and locations. Before potato tubers try held, the businesses must be eliminated very carefully. Egg, larvae, and pupae frequently used in breaks of your structure, the new surface, or perhaps in bags or boxes used for stores need to be eliminated. Simply healthy tubers are picked having stores.
Biological manage. When you look at the Peru, a soil ingredients out-of Bacillus thuringiensis is utilized to safeguard tubers inside the sites against S. tangolias. B. thuringiensis var. kurstaki works well up against S. tangolias. The newest abrasive effectation of different types of powders (kaolin, calcium supplements carbonate, otherwise someone else), which is the foundation of components, also kills young larvae due to the bodily defensive strength off the new dust. Potato tubers will likely be managed (powdered) directly just after accumulate and you can listed in storage.
Attract-and-eliminate applies on an occurrence of a single get rid of (a hundred µl)/m 2 off space for storage to minimize the male inhabitants and you will and therefore tuber infestation.
This is certainly an oil elements toward pest’s sexual pheromone and you can contact insecticide because the active ingredients, which can be applied within a density out of 2,500 droplets (one hundred µl)/ha worldwide to minimize a man people and hence leaf and you will tuber infestation
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