scholarly journals Patogenitas cendawan entomopatogen Nomuraea rileyi (Farl.) Sams. terhadap hama Spodoptera exigua Hübner (Lepidoptera: Noctuidae)

2017 ◽  
Vol 5 (2) ◽  
pp. 108 ◽  
Author(s):  
Trizelia Trizelia
Keyword(s):  
Spodoptera Exigua ◽  
Nomuraea Rileyi ◽  
Egg Mortality ◽  
Conidial Concentration ◽  
Lepidoptera Noctuidae ◽  
Eggs And Larvae ◽  
Insect Cadaver

The purpose of this research is to study the pathogenicity of Nomuraea rileyi (Farl.) Sams. to eggs and larvae of Spodoptera exigua Hübner (Lepidoptera: Noctuidae).The fungi were isolated from insect cadaver of S. exigua. Egg clusters and several instar larvae with different conidial concentrations (106 – 109 conidia/ml) were used in the experiment. The results of experiment showed that there was no effect of all concentrations of fungi on egg mortality. Mortality of S. exigua larvae was dependent on the instar and conidial concentration. Generally with increasing conidial concentrations, the mortality were also increasing.

scholarly journals UTILIZATION OF PAPAYA LEAVES (Carica papaya L.) TO CONTROL ONION PEST SPODOPTERA EXIGUA (LEPIDOPTERA: NOCTUIDAE)LEPIDOPTERA (NOCTUIDAE)

2020 ◽  
Vol 7 (1) ◽  
pp. 1-7
Author(s):  
Muhammad Agung Permadi ◽  
Rafiqah Amanda Lubis ◽  
Syawaludin Syawaludin ◽  
Nova Suryani Pasaribu
Keyword(s):  
Experimental Method ◽  
Carica Papaya ◽  
Spodoptera Exigua ◽  
Toxic Compounds ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Lepidoptera Noctuidae

Spodoptera exigua is a migrant pest that attacks onions simultaneously in groups. The utilization of papaya leaves to control pests due to papaya leaves have toxic compounds that can kill pests. This study aims to measure the ability of papaya leaves to control S. exigua larvae. This research was conducted using a completely randomized design (CRD) experimental method with two treatment factors. The first factor was papaya leaf concentration (0 g / l, 30 g / l, 70 g / l, 100 g / l, 120 g / l), and the second factor is a mixture of kerosene. The treatment was repeated three times. The study was conducted at the Agrotechnology Laboratory, Agriculture Faculty Muhammadiyah University, South Tapanuli. The results showed that papaya leaves could kill S. exigua larvae. The highest mortality of S. exigua worms There were statistically significant non-treatments among treatments.

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