scholarly journals Soybean Looper Chrysodeixis includens (Walker) (Insecta: Lepidoptera: Noctuidae)

EDIS ◽  
2018 ◽  
Vol 2018 (1) ◽  
Author(s):  
Ethan T. Carter ◽  
Jennifer Lynn Gillett-Kaufman
Keyword(s):  
Glycine Max ◽  
Life Cycle ◽  
Host Plant ◽  
Economic Importance ◽  
Dark Green ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae ◽  
Chrysodeixis Includens

The soybean looper, Chrysodeixis includens (Walker), is a light to dark green caterpillar which derives its name from its preferred host plant (soybean, Glycine max) and the looping movement it makes while in motion.  Includes: Introduction - Distribution - Description and Life Cycle - Hosts - Damage and Economic Importance - Management - Selected References Also published on the Featured Creatures website at http://entnemdept.ufl.edu/creatures/field/soybean_looper.htm

scholarly journals Antixenosis of bean genotypes to Chrysodeixis includens (Lepidoptera: Noctuidae)

2015 ◽  
Vol 50 (6) ◽  
pp. 450-458 ◽  
Author(s):  
Rafaela Morando ◽  
Edson Luiz Lopes Baldin ◽  
Patrícia Leite Cruz ◽  
André Luiz Lourenção ◽  
Alisson Fernando Chiorato
Keyword(s):  
Free Choice ◽  
Oviposition Preference ◽  
Green Light ◽  
Choice Test ◽  
Choice Tests ◽  
Dark Green ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae ◽  
Light Green ◽  
Chrysodeixis Includens

The objective of this work was to evaluate bean genotypes for resistance to soybean looper (Chrysodeixis includens). Initially, free-choice tests were carried out with 59 genotypes, divided into three groups according to leaf color intensity (dark green, light green, and medium green), in order to evaluate oviposition preference. Subsequently, 12 genotypes with high potential for resistance were selected, as well as two susceptible commercial standards. With these genotypes, new tests were performed for oviposition in a greenhouse, besides tests for attractiveness and consumption under laboratory conditions (26±2ºC, 65±10% RH, and 14 h light: 10 h dark photophase). In the no-choice test with adults, in the greenhouse, the 'IAC Jabola', Arcelina 1, 'IAC Boreal', 'Flor de Mayo', and 'IAC Formoso' genotypes were the least oviposited, showing antixenosis-type resistance for oviposition. In the free-choice test with larvae, Arcelina 4, 'BRS Horizonte', 'Pérola', H96A102-1-1-1-52, 'IAC Boreal', 'IAC Harmonia', and 'IAC Formoso' were the less consumed genotypes, which indicates antixenosis to feeding. In the no-choice test, all genotypes (except for 'IAPAR 57') expressed moderate levels of antixenosis to feeding against C. includens larvae.

Field-evolved resistance to chitin synthesis inhibitor insecticides by soybean looper, Chrysodeixis includens (Lepidoptera: Noctuidae), in Brazil

Chemosphere ◽  
2020 ◽  
Vol 259 ◽  
pp. 127499
Author(s):  
Regis F. Stacke ◽  
Daniela N. Godoy ◽  
Venicius E. Pretto ◽  
Fábio M. Führ ◽  
Patricia da S. Gubiani ◽  
...  
Keyword(s):  
Chitin Synthesis ◽  
Synthesis Inhibitor ◽  
Chitin Synthesis Inhibitor ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae ◽  
Chrysodeixis Includens

Elucidating Efficacy of Ingested Positively Charged Zein Nanoparticles Against Noctuidae

2020 ◽  
Vol 113 (6) ◽  
pp. 2739-2744
Author(s):  
Colin A R Bonser ◽  
Xuan Chen ◽  
Carlos E Astete ◽  
Cristina M Sabliov ◽  
Jeffrey A Davis
Keyword(s):  
Pest Management ◽  
Heliothis Virescens ◽  
Tobacco Budworm ◽  
Anticarsia Gemmatalis ◽  
Velvetbean Caterpillar ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae ◽  
Positively Charged ◽  
Chrysodeixis Includens ◽  
Meridic Diet

Abstract A meridic diet overlay bioassay using empty, positively charged zein nanoparticles ((+)ZNP) was performed on soybean looper (Chrysodeixis includens (Walker)), tobacco budworm (Heliothis virescens (F.)), and velvetbean caterpillar (Anticarsia gemmatalis Hübner) (Lepidoptera: Noctuidae). Assessment of effects on mortality and development weights 7 d after ingestion of (+)ZNP were evaluated on larvae of each species. Treatments involved different concentrations, with H. virescens and A. gemmatalis offered 0 and 3,800 ppm (+)ZNP, whereas C. includens colonies were offered 0, 630, 1,260, and 2,520 ppm (+)ZNP. Mortality of A. gemmatalis and C. includens increased after ingestion of the highest (+)ZNP concentrations, while H. virescens neonate mortality was unaffected. Neonate and third-instar weights of A. gemmatalis and C. includens, and neonate H. virescens, decreased with high (+)ZNP concentrations. Following mortality results from A. gemmatalis neonates, a concentration response test was performed using a range of (+)ZNP concentrations. The LC50 for A. gemmatalis was 1,478 ppm. The potential of (+)ZNP as a pest management tactic is discussed.

Inheritance of lambda-cyhalothrin resistance, fitness costs and cross-resistance to other pyrethroids in soybean looper, Chrysodeixis includens (Lepidoptera: Noctuidae)

2020 ◽  
Vol 131 ◽  
pp. 105096 ◽  
Author(s):  
Regis F. Stacke ◽  
Daniela N. Godoy ◽  
Stefany A. Halberstadt ◽  
Eduarda S. Bronzatto ◽  
Tiago Giacomelli ◽  
...  
Keyword(s):  
Cross Resistance ◽  
Fitness Costs ◽  
Lambda Cyhalothrin ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae ◽  
Chrysodeixis Includens

scholarly journals Mixture compatibility of ChinNPV baculovirus with herbicides and fungicides used in soybean

2021 ◽  
Vol 42 (5) ◽  
pp. 2629-2638
Author(s):  
Rodrigo Mendes Antunes Maciel ◽  
◽  
Junio Tavares Amaro ◽  
Fernanda Caroline Colombo ◽  
Pedro Manuel Oliveira Janeiro Neves ◽  
...  
Keyword(s):  
Reproductive Stage ◽  
Vegetative Stage ◽  
Artificial Diets ◽  
Soybean Yield ◽  
Population Outbreaks ◽  
Soybean Looper ◽  
Chemical Pesticides ◽  
Lepidoptera Noctuidae ◽  
Chrysodeixis Includens

Chrysodeixis includens Walker, 1858 (Lepidoptera: Noctuidae), commonly known as soybean looper, is one of the main pests that reduces soybean yield due to its defoliation capacity. Population outbreaks of this pest can occur in the vegetative stage of the crop, together with the occurrence of weeds or in the reproductive stage, at the same time as that of diseases. This often requires the use of pesticides against pests and weeds, or fungi at the same time. Thus, the objective of this study was to evaluate the compatibility of baculovirus ChinNPV with different synthetic chemical herbicides and fungicides used in soybean. Four bioassays were carried out, with or without the addition of ChinNPV to different herbicides and fungicides. The artificial diets were immersed in the solutions of the pesticides and their mixture and supplied to the caterpillars of C. includens, immediately and after one and two hours of mixing. The evaluation was performed by quantifying the number of dead caterpillars. The results showed that the ChinNPV baculovirus is compatible for mixing with all studied herbicides and fungicides, even after two hours of mixing. In all the studied scenarios, baculovirus mixed with chemical pesticides triggered the same mortality as sprayed with baculovirus alone, and values of over 80% mortality of C. includens have always been recorded.

scholarly journals Natural resistance of soybean cultivars to the soybean looper larva Chrysodeixis includens (Lepidoptera: Noctuidae)

2017 ◽  
Vol 52 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Paulo Eduardo Wille ◽  
Bruna Angelina Pereira ◽  
Cleiton Luiz Wille ◽  
Samanta Souza Restelatto ◽  
Mari Inês Carissimi Boff ◽  
...  
Keyword(s):  
Population Growth ◽  
Southern Region ◽  
Natural Resistance ◽  
Feeding Assay ◽  
Soybean Cultivars ◽  
Development Cycle ◽  
Soybean Looper ◽  
Neonate Larvae ◽  
Lepidoptera Noctuidae ◽  
Chrysodeixis Includens

Abstract: The objective of this work was to evaluate the natural resistance of soybean cultivars to Chrysodeixis includens. For this, four commercial soybean cultivars recommended for the Southern region of Brazil were used: BR 36, NA 5909 RG, BMX Turbo RR, and Benso 1RR. In the laboratory, larvae were subjected to the antixenosis feeding assay, in which they were free or not to choose among old leaves, new leaves, and pods. Neonate larvae were subjected to two antibiosis tests: in the first one, they were fed with leaves from the middle third of the plants of the four cultivars; and, in the second one, with leaves or pods of the NA 5909 RG cultivar. Chrysodeixis includens larvae prefer leaves over pods and old leaves over new ones. The Benso 1RR cultivar extends the development cycle of C.includens, but only BMX Turbo RR will reduce the population growth of larvae in the next generations.

Assessing Common Bean Cultivars for Resistance to the Soybean Looper Chrysodeixis includens (Lepidoptera: Noctuidae)

2017 ◽  
Vol 46 (5) ◽  
pp. 561-570 ◽  
Author(s):  
R. Morando ◽  
E. L. L. Baldin ◽  
P. L. Cruz ◽  
A. L. Lourenção
Keyword(s):  
Common Bean ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae ◽  
Chrysodeixis Includens
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