Effect of Fungicides on Growth and Development of Spodoptera litura

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Kuldeep Srivastava ◽  
Sonika Sharma ◽  
Devinder Sharma ◽  
Ramesh Kumar
Keyword(s):  
Growth And Development ◽  
Spodoptera Litura

Effect of elevated CO2 and temperature on biochemistry of groundnut and inturn its effect on development of leaf eating caterpillar, Spodoptera litura fabricius

2018 ◽  
Author(s):  
Shwetha . ◽  
A.G. Sreenivas ◽  
J. Ashoka ◽  
Sushila Nadagoud ◽  
P.H. Kuchnoor
Keyword(s):  
Climate Change ◽  
Elevated Co2 ◽  
Growth And Development ◽  
Spodoptera Litura ◽  
Growth Parameters ◽  
Leaf Nitrogen ◽  
Ambient Conditions ◽  
Mediated Effects ◽  
Negative Effect ◽  
Elevated Co2 And Temperature

Climate change in terms of elevated CO2 (eCO2) and temperature may have host mediated effects which could affect the survival, growth and development, and population dynamics of insect herbivores. The present study aimed to examine the growth and development of leaf feeding Spodoptera litura (Fabricius) (Noctuidae: Lepidoptera) reared on groundnut (Arachis hypogaea L.) grown under different climate change treatments under open top chambers (OTC’s) at University of Agricultural Sciences, Raichur, Karnataka. Significantly lower leaf nitrogen, higher carbon, C: N ratio, phenols and tannins was observed in the groundnut foliage grown under eCO2 conditions. This alteration in food quality in elevated conditions significantly affected the growth parameters of S. litura in the form of increased food consumption, increased larval weight and more faecal matter production due to extended larval and pupal duration. This resulted in reduced fecundity, particularly in the population raised under eCO2 conditions compared to ambient conditions. Further, the insect larva showed increased approximate digestibility and relative consumption rate under eCO2 condition coupled with reduced efficiency of conversion of ingested food. As a result, the relative growth rate was decreased under eCO2 conditions. In nutshell, it can be concluded that eCO2 concentrations altered the quality of groundnut foliage as it was noticed by the changes in biochemical constituents of the foliage and has the negative effect on the growth and development of S. litura.

scholarly journals Effect of buprofezin on the growth, development and morphometric parameters of Spodoptera litura (Fabricius) (Order: Lepidoptera, Family: Noctuidae) adult

2019 ◽  
Vol 17 (4) ◽  
pp. 514-520
Author(s):  
Mst Rokeya Khatun ◽  
Gopal Das ◽  
Kazi Shahanara Ahmed ◽  
Hisashi Kato- Noguchi
Keyword(s):  
Relative Humidity ◽  
Topical Application ◽  
Growth Regulator ◽  
Growth And Development ◽  
Spodoptera Litura ◽  
Wing Length ◽  
Adult Weight ◽  
Application Method ◽  
Combined Application ◽  
Application Methods

The experiments were conducted to know the efficacy of Buprofezin (Award 40 SC), an insect growth regulator against 2nd instar larvae of Spodoptera litura (Fabricius) under laboratory conditions (insect rearing was done at room temperature and relative humidity that is 260C-300C and 65-80% relative humidity) at three different concentrations viz. 200, 400, and 600 ppm through three different application methods like direct or topical, indirect or leaf-dip and combined. The experiment was laid out in complete randomized design (CRD) with three replications and ten 2nd instar larvae of Spodoptera litura were used for each replication. Results revealed that this growth regulator strongly arrested the growth and development of S. litura (Fabricius) from larval stage to adult. The treated data were recorded after adult emergence and compared with untreated control adult. The results clearly showed that Buprofezin had significant effect on the inhibition of adult weight; wing length and width compared to control and consequence were clearly dose, time and method dependent. As well as we are hopeful because we found some abnormal adult from the treated larvae that may increase the potentiality of Buprofezin as an excellent tool of IPM. The maximum, 54.53% adult weight reduction was recorded from 600 ppm of Buprofezin through combined application method which was followed by leaf-dip (46.41%) and topical application method (39.86%). Similarly, 23.13% wing length and 22.27% wing width were inhibited when larvae were treated with 600 ppm through combined application method compared to control. The 2nd best result was found from 400 ppm and leaf-dip application method. The dose, 200 ppm and topical application method was found to be less effective compared to the rest of the two doses or two application methods. So this is the demand of the current situation to evaluate this selective bio-rational molecules against S. litura as the alternatives of conventional insecticides to combat resistance development, effective larval control, inhibition of growth and development, to keep the  natural enemies safe and fit these molecules in IPM packages individually or combindly. J Bangladesh Agril Univ 17(4): 514–520, 2019

Inhibitory effect of buprofezin on the larval growth and development of Spodoptera litura (F.)

2020 ◽  
Vol 82 (1) ◽  
pp. 20
Author(s):  
Mst Rokeya Khatun ◽  
Gopal Das ◽  
Kazi Shahanara Ahmed ◽  
Hisashi Kato-Noguchi
Keyword(s):  
Growth And Development ◽  
Spodoptera Litura ◽  
Larval Growth ◽  
Inhibitory Effect

scholarly journals RESPONS PERTUMBUHAN DAN PERKEMBANGAN LARVA Spodoptera litura TERHADAP APLIKASI EKSTRAK DAUN Sphagneticola trilobata

Jurnal Agro ◽  
10.15575/7409 ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 92-101
Author(s):  
Efrin Firmansyah ◽  
Selvy Isnaeni
Keyword(s):  
Growth And Development ◽  
Spodoptera Litura ◽  
Leaf Extract ◽  
Phytochemical Analysis ◽  
Inhibition Activity ◽  
Botanical Insecticide ◽  
Negative Effects ◽  
Plant Parts ◽  
Insect Rearing ◽  
Polyphagous Insect

Spodoptera litura merupakan serangga polifag yang menyerang banyak komoditas tanaman budidaya. Pengendalian dengan menggunakan insektisida nabati merupakan upaya yang dilakukan untuk meminimalkan dampak negatif penggunaan insektisida kimia sintetik. Tumbuhan S. trilobata diketahui memiliki potensi untuk dijadikan sebagai insektisida nabati untuk mengendalikan S. litura. Aktivitas insektisida tidak hanya ditunjukkan oleh tingkat mortalitas dan penghambatan makan, suatu ekstrak tumbuhan dapat pula memengaruhi pertumbuhan dan perkembangan dari serangga sasaran sehingga dapat dikembangkan menjadi insektisida nabati. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh aplikasi ekstrak kasar daun S. trilobata terhadap pertumbuhan dan perkembangan larva S. litura. Penelitian terdiri dari tahap pemeliharaan serangga, ekstraksi bagian tumbuhan, dan uji hayati serta analisis fitokimia. Hasil penelitian menunjukkan ekstrak kasar daun S. trilobata yang diaplikasikan memengaruhi pertumbuhan dan perkembangan larva S. litura namun tidak memengaruhi ukuran panjang dan berat pupa yang terbentuk. Hasil analisis fitokimia menunjukkan ekstrak daun S. trilobata mengandung beberapa senyawa metabolit sekunder diantaranya alkaloid, triterpenoid, steroid, flavonoid, tanin dan saponin.                                                                                                    ABSTRACTSpodoptera litura is a polyphagous insect that attacks many commodities of crops. Control using plant-based insecticides is an effort made to minimize the negative effects of using synthetic insecticides. S. trilobata plant is known to have potential as plant-based insecticides to control S. litura. The effectiveness of an insecticide is not only demonstrated by the level of mortality and feeding inhibition activity, a plant extract can also affect the growth and development of the target insect so that it can be developed into a botanical insecticide. The purpose of this study was to determine the effect of S. trilobata leaf crude extract application on growth and development of S. litura larva.  The study stages consisted of insect rearing, extraction of plant parts, bioassay and phytochemical screening. The results showed that S. trilobata leaf extract which was applied affected the growth and development of S. litura larvae but did not affect the length and weight of the pupae formed. The results of phytochemical analysis showed that S. trilobata leaf extract contained several secondary metabolite compounds including alkaloids, triterpenoids, steroids, flavonoids, tannins and saponins.

scholarly journals Effect of Lactobacillus Plantarum on the Growth and Development and Gut Microbial Diversity of Spodoptera Litura

2021 ◽  
Author(s):  
Zijie Ma ◽  
Xiao-Fan Wang ◽  
Ming-Wei Li ◽  
Li-Ping Nie ◽  
Wan-Ting Zhang ◽  
...  
Keyword(s):  
Lactobacillus Plantarum ◽  
Growth And Development ◽  
Spodoptera Litura ◽  
Agricultural Research ◽  
Digestive Enzyme ◽  
Intestinal Flora ◽  
Intestinal Microbes ◽  
Main Challenge ◽  
Digestive Enzyme Activities ◽  
Abundance And Diversity

Abstract BackgroundThe main challenge for agricultural research is the determination of the best method for efficient and economical management of insects. Research on the possibility of regulating insect development by targeting the intestinal microbial community is in its early stages; however, the use of microorganisms to control the composition of the host's intestinal microbes and to affect its physiological functions has garnered considerable attention. ResultsThis study evaluated the effects of probiotics (Lactobacillus plantarum) isolated from the intestine of Spodoptera litura (Fabricius) on the growth and development of the host and the diversity of its intestinal microbes. The results of the study showed that the larvae of S. litura fed with artificial diets with different feed units could proceed towards the development of generations normally. Compared with the control responses, after ingesting L. plantarum, larval gut sucrase and other digestive enzyme activities increased, growth and development accelerated, fecundity generally increased, and there was a significant change in the female-male ratio. Additionally, differences in microbial abundance and diversity were found in the gut of S. litura larvae fed with diets supplemented with L. plantarum and without L. plantarum. ConclusionsThese findings indicate that supplementation of feed with L. plantarum can effectively affect the growth and development of the host and the composition of the intestinal flora, thereby providing useful applications in research regarding pest management.

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