scholarly journals A Review on Nucleopolyhydroviruses (NPV) as Biological Control of Army Worm, Spodoptera litura

2021 ◽  
Vol 2 (1) ◽  
pp. 30-39
Author(s):  
Zulnorain Sajid ◽  
Author(s):  
P. S. Ajiningrum ◽  
I. A. K. Pramushinta

Red spinach (Alternanthera amoena) is one of the vegetable commodities that many people in demand for consumption because of its high nutritional content. Efforts to increase the production of red spinach often experience various obstacles. The main obstacle that limits the productivity of red spinach in the tropics is the number of Plant Disturbing Organisms  in the form of pests and potential diseases that can attack and decrease the production of spinach. One of the pests that often attack spinach is the existence of army worm (Spodoptera litura F.). Therefore, farmers need a way to eradicate the pest. This research is experimental using Random Complete Group. The data obtained were analyzed with variant analysis (ANOVA) in one direction and continued with LSD (Least Significant Different) test. Provision of botanical insecticide done by spraying the extract of leaves and seeds mimba with concentration dose 0%, 5%, 10% and 15%. In the final analysis of mortality data of army worm (Spodoptera litura F.) treated with mimba leaf extract obtained significant value of 76.263 at a significant level of 0.05 so it can be concluded that there is influence of mimba leaf extract on mortality of army worm. In the final analysis of mortality data of army worm (Spodoptera litura F.) treated with mimba seed extract obtained significant value of 78.625 at a significant level of 0.05 so it can be concluded that there is an effect of mimba seeds extract on mortality army worm.   Keywords: mimba leaf extract,  mimba seed extract, red spinach (Alternanthera amoena), army worm (Spodoptera litura F.), botanical insecticide


BioControl ◽  
2006 ◽  
Vol 52 (3) ◽  
pp. 309-321 ◽  
Author(s):  
Kaijun Luo ◽  
John T. Trumble ◽  
Yi Pang

Author(s):  
Mohammad Muslim ◽  
M. Shafiq Ansari ◽  
Fazil Hasan

Bracon hebetor is a Lepidopteran parasitoid which is used in IPM program as biological control agents. Corcyra cephalonica is fictitious host for mass rearing of B. hebetor in laboratory, rest hosts reared on their respective hosts i.e. Corcyra cephalonica, Plodia interpunctella, Ephestia kuehniella were reared on wheat flour, Galleria mellonella on its artificial diet, Helicoverpa armigera on chickpea pods, Earias vitella on okra fruits, Spodoptera litura and Spodoptera littoralis on castor leaves. The results of this study showed that the paralysis and parasitisation potential of B. hebetor were found higher on C. cephalonica followed by G. mellonella, E. kuehniella, P. interpunctella while it was shortest on S. litura and S. littoralis.


2001 ◽  
Vol 6 (2) ◽  
pp. 139-143 ◽  
Author(s):  
Sun Ho Park ◽  
Yeon Su Yu ◽  
Jae Sung Park ◽  
Ho Yul Choo ◽  
Soon Do Bae ◽  
...  

2019 ◽  
Vol 11 (1) ◽  
pp. 182-187
Author(s):  
S. Deepak ◽  
A. G. Sreenivas ◽  
Basavaraj Kalmath ◽  
S. G. Hanchinal ◽  
K. T. Vendan ◽  
...  

Entomopathogenic fungi viz. Metarizhium anisoplae and Beauveria bassiana are well characterized in respect to pathogenicity to several insects and have been used for biological control of agriculture pests worldwide. Despite their potential, several factors like low resistance to elevated temperature have hindered widespread adoption of fungi as part of biological control regimes. In this study, five isolates of B. bassiana (Bb 01, Bb 02, Bb 03, Bb 04 and Bb 05) and two isolates of M. anisoplae (Ma 01 and Ma 02) were evaluated for thermotolerance capacity and bioefficacy against third instar of Spodoptera litura. Among the isolates studied, Bb 04 recorded the higher temperature tolerance up to 34oC with mean spore germination of 35.00 percent and mean dry mycelial weight of 443.38 mg. Further, in the bioassay studies, Bb 04 caused significantly (@ P<0.01%) higher percent mortality of S. litura larva at 1×108 spores ml-1 on fifth day (80.00 %) with LT50 value of 4.08 days and LC50 value of 2.07×104 conidia ml-1 at five days. Investigation results indicated that BB 04 is a suitable EPF isolate for management of S. litura where higher temperature prevails.  


EUGENIA ◽  
2012 ◽  
Vol 21 (3) ◽  
Author(s):  
Emmy Senewe ◽  
Redsway Maramis ◽  
Christina L. Salaki

ABSTRACT This study aims to obtain entomopatogenik bacteria (Bacillus cereus) as a potential biological control of pests Spodoptera litura and determine the morphological characteristics and the potential power to kill isolate B. cereus. Explored endogenous bacteria from 99 soil samples from Minahasa regency, South Minahasa and Tomohon. Bacteria were isolated by selectively using methods Ohba and Aizawa  identified by colony and cell morphology. The results showed that of the 99 soil samples obtained 141 isolates were identified as Bacillus cereus. Screening 141 isolates of the 80 isolates contained S.litura larvae that can cause deadly diseases and test larvae  >50% after 96 hours with a dose of inoculum  1.5 x 107 spores / ml. Isolates that could potentially then be selected based on the pathogenicity then be developed into a biopesticide for pest control S. litura on cauliflower and broccoli plants. Keywords: Entomoopatogenic bacteria, Spodoptera litura, cabbage plants


1978 ◽  
Vol 8 (4) ◽  
pp. 307-309 ◽  
Author(s):  
S.M. Hadi ◽  
N.S. Ahmad ◽  
A.A. Wani

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