scholarly journals Controle do pulgão-preto, Aphis craccivora Koch (Hemiptera: Aphididae), em mudas de jacarandá-do-cerrado (Dalbergia miscolobium Benth.) com o uso de detergente neutro

2019 ◽  
Vol 12 (3) ◽  
pp. 154-156
Author(s):  
Marcelo Tavares De Castro ◽  
Sandro Coelho Linhares Montalvão
Keyword(s):  
Federal District ◽  
Aphis Craccivora ◽  
Water Solutions ◽  
Apical Bud ◽  
Aphis Craccivora Koch ◽  
Distrito Federal ◽  
And Control ◽  
First Time

Resumo. Aphis craccivora Koch (Hemiptera: Aphididae), um afídeo altamente polífago e praga de muitas culturas de interesse econômico, é relatado pela primeira vez causando deformações na gema apical e nos folíolos novos de mudas de Dalbergia miscolobium Benth (Leguminosae) em Brasília, Distrito Federal, Brasil. Diferentes concentrações de soluções de detergente neutro e água foram testadas para controlar o afídeo, com o uso de nove mudas infestadas. Os afídeos foram previamente contados em cada planta e dois tratamentos foram utilizados (detergente neutro a 5% e 10%), além da testemunha, onde só foi aplicado água. Ambas as doses causaram mortalidade e a concentração de 5% apresentou 83,8% de eficiência, o que indica que esse tratamento é eficaz para diminuir a população desses insetos em mudas de jacarandá-do-cerrado.Occurrence and control of the black aphid, Aphis craccivora Koch (Hemiptera: Aphididae), on “jacarandá-do-cerrado” seedlings (Dalbergia miscolobium Benth.) with the use of neutral detergentAbstract. Aphis craccivora Koch (Hemiptera: Aphididae), a highly polyphagous aphid and pest of many economic crops, is reported for the first-time causing deformations in the apical bud and on the new folioles of Dalbergia miscolobium Benth (Leguminosae) seedlings in Brasilia, Federal District, Brazil. Different concentrations of neutral detergent and water solutions were tested to control the aphid using nine infested seedlings. The aphids were previously counted in each plant and two treatments were used (5% and 10% of neutral detergent), and the control, where only water was applied. Both concentrations caused mortality and the 5% showed an efficiency of 83.8%, which indicates that this treatment is effective to decrease the population of these insects in “jacarandá-do-cerrado” seedlings.

scholarly journals Ocorrência da cochonilha Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) em mudas de mogno (Swietenia macrophylla King)

2019 ◽  
Vol 12 (1) ◽  
pp. 41-43
Author(s):  
Marcelo Tavares De Castro ◽  
Sandro Coelho Linhares Montalvão ◽  
Ana Lúcia Benfatti Gonzalez Peronti ◽  
Rose Gomes Monnerat
Keyword(s):  
Water Solution ◽  
Federal District ◽  
Swietenia Macrophylla ◽  
Phenacoccus Solenopsis ◽  
Distrito Federal ◽  
First Time

Resumo. Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) é relatada pela primeira vez associada ao mogno brasileiro, Swietenia macrophylla King (Meliaceae). Infestações deste pseudococcídeo foram observadas sobre folhas e ramos de mudas do mogno cultivadas em casa de vegetação, em Brasília, Distrito Federal, Brasil. O controle da cochonilha foi realizado manualmente e/ou com aplicação de solução de água com detergente neutro a 10%.Occurrence of the mealybug Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) on mahogany seedlings (Swietenia macrophylla King)Abstract. Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) is reported for the first time on brazilian mahogany, Swietenia macrophylla King (Meliaceae). Infestations of this Pseudococcidae were observed on leafs and branches of mahogany seedlings cultivated in a greenhouse, in Brasilia, Federal District, Brazil. The control of the mealybug was realized manually and/or with application of water solution with 10% of neutral detergent.

A new species of Erythraeus (Erythraeus) and new records of mites (Acari: Erythraeidae) from Serbia

Biologia ◽  
2015 ◽  
Vol 70 (6) ◽  
Author(s):  
Miloje Šundić ◽  
Ryszard Haitlinger ◽  
Radmila Petanović ◽  
Ivana Jovičić ◽  
Masoud Hakimitabar
Keyword(s):  
New Species ◽  
New Records ◽  
Aphis Craccivora ◽  
Aphis Craccivora Koch ◽  
First Time ◽  
A New Species

AbstractErythraeus (Erythraeus) serbicus Šundić, Haitlinger & Hakimitabar sp. n. is described and illustrated based on larvae collected from the host Aphis craccivora (Koch, 1854) in Serbia. Leptus eslamizadehi Saboori, Abrolophus montenegrinus Saboori et al., Charletonia krendowskyi Feider, and Erythraeus (Erythraeus) mariolae Haitlinger are reported for the first time from Serbia.

scholarly journals Aphis craccivora Koch, 1854 (Hemiptera: Aphididae) infesting mahogany seedlings (Swietenia macrophylla King, Meliaceae) and scarlet jade vines (Mucuna bennettii F. Muell., Fabaceae)

2020 ◽  
Vol 2 ◽  
pp. ec02011
Author(s):  
Marcelo T. Castro ◽  
Sandro C. L. Montalvão ◽  
Suzan B. Z. Cunha ◽  
Rose G. Monnerat
Keyword(s):  
Aphis Craccivora ◽  
Limiting Factor ◽  
Economic Interest ◽  
Swietenia Macrophylla ◽  
Aphis Craccivora Koch ◽  
Distrito Federal

Aphis craccivora Koch, 1854 (Hemiptera: Aphididae) is a highly polyphagous aphid that is considered a pest of many crops with economic interest. The present study reports the occurrence and plant damages caused by the aphid A. craccivora on mahogany seedlings (Swietenia macrophylla King, Meliaceae) and scarlet jade vines (Mucuna bennettii F. Muell., Fabaceae) in the Distrito Federal, Brazil. Infestations of this aphid were found in twelve mahogany seedlings and two scarlet jade vines. The infestations caused deformations in the young leaflets of mahogany plants as well as leaves and inflorescences of scarlet jade vine. A. craccivora negatively affected the development of S. macrophylla and might become a limiting factor for seedlings production.

scholarly journals Extracts of native forest species of the southern amazon in the control of Aphis craccivora koch (Hemiptera: aphididae)

2021 ◽  
Vol 37 ◽  
pp. e37018
Author(s):  
Laura Araujo Sanches ◽  
Simone de Bitencourt Oliveira ◽  
Mariane Kaori Sasaya ◽  
Juliana Garlet
Keyword(s):  
Gliricidia Sepium ◽  
Aphis Craccivora ◽  
Control Treatment ◽  
Native Forest ◽  
Distilled Water ◽  
Alcoholic Extract ◽  
Forest Species ◽  
Aphis Craccivora Koch ◽  
Petri Dishes ◽  
And Control

The objective of this study was to evaluate the mortality of Aphis craccivora Koch (Hemiptera: Aphididae) submitted to different extracts with different concentrations of leaves of the native forest species: Tetragastris altissima (Aubl.) Swart (Burseraceae), Metrodorea flavida K. Krause (Rutaceae) and Cheiloclinium cognatum (Miers) AC Sm (Celastraceae) under laboratory conditions. Adults of Aphis craccivora were collected in Gliricidia sepium (Jacq.) Kunthe Walp. (Fabaceae), and separated into groups of ten individuals, transferred to Petri dishes and exposed to topical application of aqueous, alcoholic and leaf infusion extracts of Cheiloclinium cognatum, Metrodorea flavida and Tetragastris altissima. The extracts were applied at concentrations of: 3, 6, 9, 12 and 15%, with 1% dimethylsulfoxide (DMSO), using a control treatment 1 (distilled water + DMSO 1%) and control treatment 2 (fipronil). Evaluations were performed at 24, 48 and 72 hours after the application of the extracts by counting the dead insects. The experimental design was completely randomized, with five replicates, three types of extracts and five concentrations with controls. In all the studied species, the aqueous and infusion extracts presented a lower mortality (less than 52%), whereas the alcoholic extract in higher concentrations of Cheiloclinium cognatum, Metrodorea flavida showed a mortality of up to 100%. The species Tetragastris altissima reached an average mortality of 92%. The lethal concentration for the alcoholic extract of Cheiloclinium cognatum was LC50 6.43% and LC90 12.22%, Metrodorea flavida LC50 was 3.08% and LC90 7.05% and that for Tetragastris altissima LC50 5.58% and LC90 17.47%, after 72 hours. The use of the alcoholic extract of the species Metrodorea flavida at a concentration of 9% in the control of Aphis craccivora is indicated.

scholarly journals Silicon as resistance inducer in to control black aphid Aphis craccivora Koch, 1854 in Phaseolus lunatus lima beans

2019 ◽  
Vol 86 ◽  
Author(s):  
Gilson Lages Fortes Portela ◽  
Paulo Roberto Ramalho Silva ◽  
José Edmir Girão Filho ◽  
Luiz Evaldo de Moura Pádua ◽  
Luiz Carlos de Melo Júnior
Keyword(s):  
Lignin Content ◽  
Lima Bean ◽  
Reproductive Period ◽  
Aphis Craccivora ◽  
Phaseolus Lunatus ◽  
Biological Variables ◽  
Aphis Craccivora Koch ◽  
Biological Aspects ◽  
Lima Beans ◽  
And Control

ABSTRACT In Brazil, there are few records of insects associated with the cultivation of lima beans; among them, there is the black aphid Aphis craccivora Koch, 1854. The objective of this study was to evaluate the effects of silicon application on the resistance induction of lima bean plants, Phaseolus lunatus, to the black aphid A. craccivora. The experiment was conducted in the Entomology Laboratory of the Phytosanitary Sector of Centro de Ciências Agrárias, Universidade Federal do Piauí (UFPI), Brazil. The effects of the following treatments on biological aspects of the insect were evaluated: silicon applied to soil; silicon applied to soil + leaf; silicon applied to leaf; and control, without silicon application. The following biological variables were evaluated: generation period, reproductive period, and the fertility and daily average of produced nymphs per female. Plant silicon and lignin content were also evaluated. A 1% solution of silicic acid (2.0 g of product diluted in 200 mL of water) was applied around the plant stem (on soil), 15 days after emergence. Leaf application was performed with a 1-L spray, 5 days after the soil application. The non-preference of A. craccivora on lima beans was also evaluated. The evaluations were performed after 48 and 72 hours of infestation by counting nymphs and adults at each leaf section. Silicon application reduces nymph production, thereby interfering in the biological aspects of A. craccivora. Therefore, it can be used in cowpea pest management programs.

scholarly journals Bioefficacy of different insecticides on cowpea aphid (Aphis craccivora Koch)

2019 ◽  
Vol 7 (1) ◽  
pp. 01-07 ◽  
Author(s):  
Roshan Dhakal ◽  
Reeta Ghimire ◽  
Madan Sapkota ◽  
Samita Thapa ◽  
Atal K. Bhatta ◽  
...  
Keyword(s):  
Block Design ◽  
Cost Benefit ◽  
Aphis Craccivora ◽  
High Yield ◽  
Research Station ◽  
Net Profit ◽  
Aphis Craccivora Koch ◽  
Cost Benefit Ratio ◽  
Cannabis Extract ◽  
And Control

Aphid (Aphis craccivora Koch) is one of the serious pests of cowpea. Bioefficacy of four insecticides with different concentrations namely Jholmol (125 ml/L), Neemix (2 ml/L), Cannabis extract (100 g/L), Chlorpyrifos 50% EC and Cypermethrin 5% EC (2 ml/L) along with control were evaluated against aphid at Research Station of Agriculture and Forestry University, Rampur, Chitwan, Nepal in 2018. Five treatments; four different insecticides and control were laid out in a randomized complete block design with four replications. The results indicated that all the insecticides were significant for aphid reduction. The effects were higher in Neemix followed by Jholmol and cannabis extract. The yield of cowpea was significantly highest (11.10 t/ha) with Neemix application, while lowest in control (7.58 t/ha). The highest net profit (NRs.61670) was obtained in Neemix followed by treatments of Jholmol (NRs.46175) and Cannabis extract (NRs.35815). The lowest incremental Cost/Benefit ratio was obtained in Neemix (1.341) and followed by treatments of, jholmol (1/1.12) and Cannabis extract (1/0.85), respectively. Thus, application of Neemix @ 2 ml/L could be used in cowpea to control aphid with high yield.

scholarly journals Primeiro relato de Aetalion reticulatum (L.) (Hemiptera: Aetalionidae) infestando plantas de noni [Morinda citrifolia L. (Rubiaceae)]

2019 ◽  
Vol 12 (2) ◽  
pp. 81-83 ◽  
Author(s):  
Marcelo Tavares De Castro ◽  
Sandro Coelho Linhares Montalvão
Keyword(s):  
New Record ◽  
Federal District ◽  
Morinda Citrifolia ◽  
Distrito Federal ◽  
First Time

Resumo. Aetalion reticulatum (L.) (Hemiptera: Aetalionidae), uma cigarrinha altamente polífaga e reconhecidamente praga de várias culturas agrícolas e florestais, é relatada pela primeira vez infestando plantas de noni, Morinda citrifolia L. (Gentianales: Rubiaceae), em Brasília, Distrito Federal, Brasil. Esse novo registro aumenta a lista de hospedeiras do inseto, reforçando a necessidade de estudos mais aprofundados sobre essa cigarrinha e o seu controle.First report of Aetalion reticulatum (L.) (Hemiptera: Aetalionidae) infesting plants of noni [Morinda citrifolia L. (Rubiaceae)]Abstract. Aetalion reticulatum (L.) (Hemiptera: Aetalionidae), a highly polyphagous leafhooper and known to be pest of various agricultural and forestry crops, is reported for the first-time infesting noni plants, Morinda citrifolia L. (Gentianales: Rubiaceae), in Brasília, Federal District, Brazil. This new record increases the host’s list of this insect, reinforcing the necessity for more in-depth studies of this leafhooper and its control.

Suitability of forms of preparing seeds of Dalbergia miscolobium Benth for exposure to the tetrazolium test / Adequação das formas de preparação de sementes de Dalbergia miscolobium Benth para exposição ao teste de tetrazolium

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Juliana Martins de Mesquita Matos ◽  
Rosana De Carvalho Cristo Martins ◽  
Valéria Regina Bellotto ◽  
Lilian Gomes da Silva Rocha ◽  
Eloiza Aparecida Barbosa ◽  
...  
Keyword(s):  
Endangered Species ◽  
Filter Paper ◽  
Federal District ◽  
Complete Removal ◽  
Sensu Stricto ◽  
The Other ◽  
Distrito Federal ◽  
Viable Seeds ◽  
Range Test ◽  
Tetrazolium Test

Dalbergia miscolobium or Jacarandá do Cerrado is a species of legume in the Fabaceae family. It occurs in the sensu stricto Cerrado and in the dystrophic cerradão. It shows potential for landscaping and for recovering damaged areas. It is an endangered species and therefore is protected by the law that prevents cut in areas of the Federal District (Decree No. 14.783/93). The purpose of this study was to determine the best procedure to prepare seeds of Dalbergia miscolobium to assess viability in the tetrazolium test. We carried out the following treatments: i) hydration on filter paper at 25 ° C, ii) hydration on filter paper at 25 ° C followed by a cut in the tegument and iii) hydration on filter paper at 25 ° C followed bya complete removal of the tegument. The results were analyzed using analysis of variance and the Tukey range test. The analyzes showed that the best procedure to prepare seeds of Dalbergia miscolobium is the treatment in which there is a hydration followed by the complete removal of the integument. Where 78% of the seeds showed uniform staining, indicating that the seeds analyzed are of good quality. The other treatments, hydration and hydration followed by cutting, showed respectively 35% and 41% of viable seeds. RESUMO A Dalbergia miscolobium ou Jacarandá do Cerrado é uma espécie de leguminosa da família Fabaceae. Ocorre no sentido stricto Cerrado e no cerradão distrófico. Possui potencial para paisagismo e para recuperar áreas degradadas. É uma espécie ameaçada de extinção e, portanto, está protegida pela lei que previne o corte em áreas do Distrito Federal (Decreto 14.783 / 93). O objetivo deste estudo foi determinar o melhor procedimento de prepararação das sementes de Dalbergia miscolobium para serem submetidas à análise de viabilidade pelo teste de tetrazólio. Foram realizados os seguintes tratamentos: i) hidratação em papel de filtro a 25 ° C, ii) hidratação em papel de filtro a 25 ° C seguida de um corte no tegumento e iii) hidratação em papel de filtro a 25 ° C seguido de remoção completa do tegumento. Os resultados foram analisados utilizando-se a análise de variância e o teste de médias de Tukey. As análises mostraram que o melhor procedimento para preparar sementes de Dalbergia miscolobium é o tratamento em que há uma hidratação seguida pela remoção completa do tegumento, onde 78% das sementes apresentaram coloração uniforme, indicando que as sementes analisadas são de boa qualidade. Os demais tratamentos, hidratação e hidratação seguida de corte, mostraram respectivamente 35% e 41% de sementes viáveis.

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