Keanekaragaman Serangga pada Pertanaman Bawang Merah Semi Organik dan Konvensional di Dataran Tinggi Balige
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Institusion
Universitas Sumatera Utara
Author
Dharma, Toni Arya
Subject
Keanekaragaman Serangga
Datestamp
2018-12-27 02:59:50
Abstract :
The Shallot cultivation in Balige has been the last two years cultivated by farmers, some obstacles are found by farmers when farming shallot, such as pest and disease attacks. The frequency of pesticide applications have done intensively. This research was aimed to explore and compare the diversity of insects on the true seed of shallot plantations with Semi organic and conventional farming systems in the vegetative and generative phases in the Balige plateau, Tobasa Regency. This research was conducted at Gurgur Experimental Garden, Balige and Plant Pest and Disease Laboratory, Faculty of Agriculture, University of Sumatera Utara. Medan in August until December 2018. This research used five insects traps (Sweep Net, Pitfall Trap, Light Trap, Yellow Trap, Hand Picking) and repeated for eight times. The results showed that insects caught on shallot plantations with semi organic farm had 10 orders and 34 families, the highest relative density value is 20,938% and the lowest amounted to 0,415%, the value of insect diversity index of Shannon-Weiner (H?) is 2,866 (moderate) and the value of insect evennes index (E?) is 0,643 (high) whereas on shallot plantations with convencional farm had 10 orders and 32 families with the highest relative density value is 24,039%, the lowest amounted 0,339%, the value of insect diversity index of Shannon-Weiner (H?) is 2,732 (moderate) and the value insect evennes index (E?) is 0,647 (high).
The Shallot cultivation in Balige has been the last two years cultivated by farmers, some obstacles are found by farmers when farming shallot, such as pest and disease attacks. The frequency of pesticide applications have done intensively. This research was aimed to explore and compare the diversity of insects on the true seed of shallot plantations with Semi organic and conventional farming systems in the vegetative and generative phases in the Balige plateau, Tobasa Regency. This research was conducted at Gurgur Experimental Garden, Balige and Plant Pest and Disease Laboratory, Faculty of Agriculture, University of Sumatera Utara. Medan in August until December 2018. This research used five insects traps (Sweep Net, Pitfall Trap, Light Trap, Yellow Trap, Hand Picking) and repeated for eight times. The results showed that insects caught on shallot plantations with semi organic farm had 10 orders and 34 families, the highest relative density value is 20,938% and the lowest amounted to 0,415%, the value of insect diversity index of Shannon-Weiner (H?) is 2,866 (moderate) and the value of insect evennes index (E?) is 0,643 (high) whereas on shallot plantations with convencional farm had 10 orders and 32 families with the highest relative density value is 24,039%, the lowest amounted 0,339%, the value of insect diversity index of Shannon-Weiner (H?) is 2,732 (moderate) and the value insect evennes index (E?) is 0,647 (high).
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