Attack intensity of pest in the vegetative phase of Atlantic potato variety in three different altitudes

Abstract

.Potato plants are grown well in the highlands and have the potential to grow at different altitudes. One of the challenges in growing potatoes is pest attack during plantations, especially during the vegetative phase. The study aims to determine the attack intensity of potato pests on Atlantic variety at three different altitudes. This study was conducted in the Sembalun District, East Lombok, in three different locations, namely Sajang Village (at ca. 900 m asl), SembalunBumbung Village (at ca.1000 m asl), and SembalunLawang Village (at ca.1200 m asl) from March to June 2021. The plantations were maintained according to the standard maintenance of potato plantation farmers in Sembalun, and data was collected on a two-week basis. The research method used was an experimental method based on a Randomized Block Design (RBD). The sampling of potato plants was done using systematic random sampling. The results showed that the highest attack intensity of pests in the vegetative phase was observed nine weeks after planting, where the plants were suitable for the foliar pest. Altogether, potato plantation in SembalunBumbung had the highest attack intensity than in SembalunLawang and Sajang village. Further research is needed to examine the resistance of several varieties of potato in different altitudes and different seasons to attack the intensity of pests.