tangolias in the field and you may store from the drawing men grownups. They can be used to select the early presence of S. tangolias to bring adequate manage.
Ancient physiological handle. Traditional physiological manage is going to be an excellent means in all men and women countries where in fact the pest might have been unintentionally lead to store the brand new insect people beneath the handle threshold (revealed for the point 4.step one.step 1, P. operculella).
Monitoring having pheromone barriers
Avoid infestation regarding pest-totally free potato-expanding zones. Infested seeds facilitates the fresh new punctual spread of one’s pest in fact it is a prime source of initially infestation within the potato fields. Thus, pest-100 % free seeds tubers must be planted.
Sufficient hilling. In this field, larvae need to go into the surface to-arrive the brand new potato tubers. The brand new infestation away from potato tubers decreases to your breadth within the surface in which they establish. Hence potato tubers need to be secure well which have crushed during the the entire cultivation several months.
Stop dry surface requirements. Dry-weather standards favor multiplication away from S. tangolias on earth because amount of egg put minimizes highly which have highest floor wetness; larvae block from inside the highly damp soil also. New planting date will be adjusted to quit long periods away from dry weather, particularly in the brand new months in advance of compile. If you have modest rain, sprinkler irrigation are often used to moisten the latest crushed.
Timely and you will complete assemble. Large tuber ruin at gather has been seem to caused by delay harvests in conjunction with dry weather problems that enable https://datingmentor.org/chinese-dating/ multiple years growing around. Throughout the lifeless episodes, fast gather is a must to avoid tuber infestation (the larvae change from the new stems on tubers if the plant wilts). Early-maturing species normally donate to reduce the danger of infestation. Kept tubers (volunteer plant life) are frequently infested from the S. tangolias, taking a source of re also-infestation and want as taken out of industry.
Brush shops business. Infested potato places are a source of contamination to own tubers stored after secure plus in close fields and you may areas. Ahead of potato tubers is stored, the stores should be cleared carefully. Eggs, larvae, and you can pupae frequently utilized in fractures of your wall space, brand new surface, or perhaps in handbags or packages useful for sites must be eliminated. Simply compliment tubers is going to be chose having shops.
Biological control. In the Peru, a dust components from Bacillus thuringiensis can be used to safeguard tubers for the shops facing S. tangolias. B. thuringiensis var. kurstaki is effective up against S. tangolias. New rough effect of different types of powders (kaolin, calcium supplements carbonate, or anyone else), which is the foundation of your own foods, as well as eliminates more youthful larvae because of the actual defensive strength from this new dust. Potato tubers will be treated (powdered) physically just after assemble and you may listed in sites.
Attract-and-eliminate applies in the a density of a single shed (a hundred µl)/m dos off space for storing to reduce a man inhabitants and you may and that tuber infestation.
This is exactly a petroleum elements towards pest’s intimate pheromone and you may contact insecticide while the ingredients, that are used at a thickness out of dos,500 droplets (one hundred µl)/ha worldwide to minimize the male inhabitants so because of this leaf and tuber infestation
Dangles, O., Meters. Herrera, and you can F. Anthelme. 2013. Experimental assistance of one’s fret-gradient hypothesis in the herbivore-herbivore relations. The fresh Pathologist 197: 405–408.
Dangles, O., M. Herrera, C. Mazoyer, and you may J.-F. Silvain. 2013. Temperature-based shifts in herbivore show and you will affairs drive nonlinear changes in collect injuries. Global Changes Biology 19: 1056–1063.
Dangles, O., V. Mesias, V. Crespo-Perez, and you will J.-F. Silvain. 2009. Pick ruin develops which have insect species range: facts regarding potato tuber moths on the tropical Andes. Log out-of Applied Environment 46: 1115–1121.
