Telenomus remus (Hymenoptera: Platygastridae) Parasitism on Eggs of Anticarsia gemmatalis (Lepidoptera: Eribidae) Compared With Its Natural Host Spodoptera frugiperda (Lepidoptera: Noctuidae)

2014 ◽  
Vol 107 (4) ◽  
pp. 799-808 ◽  
Author(s):  
R.C. Oliveira de Freitas Bueno ◽  
Adeney De Freitas Bueno ◽  
Maria Fernanda Da Costa Xavier ◽  
Marina Mouzinho Carvalho
Keyword(s):  
Spodoptera Frugiperda ◽  
Natural Host ◽  
Anticarsia Gemmatalis ◽  
Lepidoptera Noctuidae ◽  
Telenomus Remus

scholarly journals Releasing number of Telenomus remus (Nixon) (Hymenoptera: Platygastridae) against Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in corn, cotton and soybean

2013 ◽  
Vol 43 (3) ◽  
pp. 377-382 ◽  
Author(s):  
Aline Farhat Pomari ◽  
Adeney de Freitas Bueno ◽  
Regiane Cristina Oliveira de Freitas Bueno ◽  
Ayres de Oliveiras Menezes Junior ◽  
Augusto Cesar Prado Fernandes Fonseca
Keyword(s):  
Pest Control ◽  
Spodoptera Frugiperda ◽  
Plant Architecture ◽  
Crop Plant ◽  
Phenological Stage ◽  
Phenological Stages ◽  
Quadratic Effect ◽  
Lepidoptera Noctuidae ◽  
Telenomus Remus

Telenomus remus releasing numbers may vary depending on the crop, plant architecture and/or the plant phenological stage. Thus, we examined the number of parasitoids needed for effective pest control of Spodoptera frugiperda on corn, cotton and soybean. In all crops, the parasitism response in relation to increasing numbers of the parasitoids had a quadratic effect. In corn, the maximum parasitism observed was 99.8% and 96.8% at a parasitoid releasing number of 0.231 and 0.264 T. remus females per S. frugiperda egg at phenological stages V4 and V10, respectively. Differently, in cotton and soybean, the highest parasitim were recorded using the highest tested T. remus releasing numbers (0.297 parasitoid per S. frugiperda egg). In cotton, it was 77.8% and 73.1% at the vegetative and reproductive stages, respectively and in soybean, it was 77.3% and 54.4% also at the vegetative and reproductive stages. Thus, the appropriated T. remus releasing number might vary accordingly to the crop and plant phenological stage, being higher for soybean and cotton and lower for corn.

scholarly journals Estirpes de Bacillus thuringiensis efetivas contra insetos das ordens Lepidoptera, Coleoptera e Diptera

2004 ◽  
Vol 39 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Lílian Botelho Praça ◽  
Andréa Cardoso Batista ◽  
Érica Soares Martins ◽  
Claúdia Brod Siqueira ◽  
Daniel Gerheim de Souza Dias ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Spodoptera Frugiperda ◽  
Anticarsia Gemmatalis ◽  
Anthonomus Grandis ◽  
Lepidoptera Noctuidae

O objetivo deste trabalho foi selecionar entre 300 estirpes de Bacillus thuringiensis as efetivas simultaneamente contra larvas de Spodoptera frugiperda J.E. Smith e Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae), Anthonomus grandis Boheman (Coleoptera: Curculionidae), Aedes aegypti Linnaeus e Culex quinquefasciatus Say (Diptera: Culicidae). Foram selecionadas duas estirpes de B. thuringiensis, denominadas S234 e S997, que apresentaram atividade contra as três ordens de insetos. As estirpes foram caracterizadas por métodos morfológicos, bioquímicos e moleculares. As mesmas apresentaram duas proteínas principais de 130 e 65 kDa, produtos de reação em cadeia da polimerase de tamanho esperado para a detecção dos genes cry1Aa, cry1Ab, cry1Ac, cry1B e cry2 e cristais bipiramidais, cubóides e esféricos.

scholarly journals Biology and life tables of Telenomus remus (Hymenoptera: Scelionidae) as parasitoid of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)

2021 ◽  
Vol 948 (1) ◽  
pp. 012041
Author(s):  
Oktaviani ◽  
N Maryana ◽  
Pudjianto
Keyword(s):  
Life Table ◽  
Spodoptera Frugiperda ◽  
Intrinsic Rate ◽  
Immature Stage ◽  
Intrinsic Rate Of Increase ◽  
Reproduction Rate ◽  
Rate Of Increase ◽  
Net Reproduction ◽  
Lepidoptera Noctuidae ◽  
Telenomus Remus

Abstract Telenomus remus (Hymenoptera: Scelionidae), is an endoparasitoid on eggs of Spodoptera frugiperda (J. E. Smith). S. frugiperda. The information of T. remus as a natural enemy of S. frugiperda is very limited. The research objective is to determine some biological aspects of T. remus, i.e. longevity, fecundity, and life table variables. The demographic statistics using the jackknife method. T. remus is collected from the field identified as T. remus. The immature stage of T. remus reached 8.13 days, the longevity of the male was 10.07 days, while a female was 10.29 days with a fecundity of 75 eggs, and a sex ratio of male and female was 1:2.16. T. remus life table, i.e. gross reproduction rate (GRR) was 74.67 individuals/generation, net reproduction rate (R0) was 45260.60 females/females/generation, with generation period (T) was 8.62 days, and intrinsic rate of increase (r) was 1.24 females/female/day. The success parasitization of T. remus reaches 91%.

EFFECT OF HOST-LARVAL DIET ON THE HOST ACCEPTANCE AND HOST SUITABILITY OF THE EGG PARASITOID Telenomus remus NIXON (Hymenoptera: Scelionidae) ON Spodoptera frugiperda J. E. Smith (Lepidoptera: Noctuidae)

2021 ◽  
Vol 21 (2) ◽  
pp. 158-165
Author(s):  
Adha Sari ◽  
Damayanti Buchori ◽  
Ihsan Nurkomar
Keyword(s):  
Spodoptera Frugiperda ◽  
Artificial Diet ◽  
Egg Parasitoid ◽  
Host Suitability ◽  
Host Acceptance ◽  
Larval Diet ◽  
Parasitism Rate ◽  
Natural Diet ◽  
Lepidoptera Noctuidae ◽  
Telenomus Remus

Effect of host-larval diet on the host acceptance and host suitability of the egg parasitoid Telenomus remus Nixon (Hymenoptera: Scelionidae) on Spodoptera frugiperda J. E. Smith (Lepidoptera: Noctuidae). The life history of parasitoids is an important factor that can determine their ability to attack a host. The type of food consumed by the host can affect the ability of parasitoids such as host searching behavior, host suitability and host acceptance. In this research, we evaluate the effect of the S. frugiperda larvae diet on its suitability of the eggs produced by the adults for the egg parasitoid Telenomus remus. The research was studied on two types of egg masses of S. frugiperda that obtained from the moths that fed with natural or artificial diet during their larval stages. Parasitoid was reared from both types of hosts. An egg mass consisting of 50 S. frugiperda eggs from both types of hosts was exposed to one egg parasitoid female for 24 hours. S. frugiperda eggs then were reared until the parasitoid adult emerged. Each experiment was repeated 20 times. Host acceptance was observed through the host parasitism rate and its parasitization. Meanwhile, the host suitability was observed through the sex ratio of the emerging parasitoids. The results showed that S. frugiperda eggs reared using artificial diet had a higher parasitism rate (99.33%) than those of natural diet (82.53%). In contrast, the level of parasitization of S. frugiperda eggs reared using natural diet was higher (78.30%) than those of artificial diet (48.34%) because the number of emerging T. remus from S. frugiperda eggs reared using natural diet was also higher than those of artificial diet. However, the sex ratio (F:M) of emerging T. remus from S. frugiperda eggs reared using both of diet was female biased.

scholarly journals Identificação e caracterização de isolado brasileiro do vírus de poliedrose nuclear da lagarta do cartucho-do-milho

1997 ◽  
Vol 26 (3) ◽  
pp. 507-515 ◽  
Author(s):  
Andréia O. Gerk ◽  
Elliot W. Kitajima ◽  
Marlinda L. Souza
Keyword(s):  
Spodoptera Frugiperda ◽  
Anticarsia Gemmatalis ◽  
Lepidoptera Noctuidae

Foi confirmada a identificação de um vírus de poliedrose nuclear (VPN) de lagartas de Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), coletado de lagartas infectadas em Sete Lagoas, MG. A patologia de lagartas infectadas é característica de VPN. O vírus apresentou tropismo por células da ectoderme, células adiposas e de traqueócitos. Partículas virais (poliedros e vírions liberados por álcali - ARVs) foram purificadas a partir de centrifugações diferenciais em gradientes de sacarose e a banda de poliedros situou-se no terço inferior do tubo. Quanto maior o tempo de digestão dos poliedros, com solução alcalina, maior a dissolução dos corpos de inclusão (poliedros), com consequente liberação de vírions. Houve a formação de cinco bandas nítidas de vírions liberados por álcali. O perfil eletroforético do VPN de S. frugiperda foi comparado ao perfil do VPN de Anticarsia gemmatalis (Hübner), tanto para poliedros como para ARVs. Um peptídeo de 32.000 dalton foi caracterizado como a poliedrina do VPN de S. frugiperda.

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