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 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.

Potency of Three Botanical Oils Against the Aphis Craccivora Koch (Homoptera: Aphididae) Nymphs Under Laboratory Conditions

2021 ◽  
Vol 19 (1) ◽  
pp. 139-154
Author(s):  
MA Hossain ◽  
MS Yasmin ◽  
MAA Bachchu ◽  
MA Alim
Keyword(s):  
Treatment Time ◽  
Probit Analysis ◽  
Aphis Craccivora ◽  
Tween 20 ◽  
Laboratory Conditions ◽  
Significant Difference ◽  
Aphis Craccivora Koch ◽  
Insect Mortality ◽  
Oil Repellent ◽  
Swietenia Mahagoni

Botanicals are promising and attractive alternatives for pest management. In the present study, three botanical oils namely neem (Azadirachta indica), karanja (Pongamia pinnata) and mehogony (Swietenia mahagoni) were tested against the nymphs of Aphis craccivora Koch to evaluate the toxic and repellent effects under laboratory conditions (25 ± 5oC, 65-75% RH). Four concentrations (0.5, 1.0, 1.5, and 2.0%) along with control were maintained with distilled water and tween-20 was used as emulsifier. Leaf dipped method were used for insect bioassay. Insect mortality was recorded at 24, 48 and 72 hours after intervals while repellency was carried out at 2 hours after intervals upto 10th hours and the collected data were analyzed through MSTAT-C program. Results indicated that all the tested oils had toxic and repellent effects against the A. craccivora nymphs. Among the tested botanical oils, no significant difference was observed in terms of mortality over treatment time. But significant difference was noticed over level of concentrations exerted by the botanical oils. The average highest mortality (28.62%) was recorded by the application of mehogony oil whereas neem oil showed the lowest mortality (27.21%) against the A. craccivora and the mortality was directly proportional to the level of concentrations and hour after treatment (HAT). Probit analysis showed the lowest LD50 values of mehogony oil which revealed the highest toxic effect against the nymph of bean aphid. The highest repellent effect (77.33%) was found in mehogony oil (repellent class IV) among all the botanical oils applied. On the contrary, neem (57.33%) and karanja (55.00%) oils belonged to the same repellent class that is repellent class II. Although all the tested botanical oils evaluated showed toxic and repellent effects but mehogony oil performed as the best potent oil against the nymphs. We therefore suggested using the mehogony oil for the management of bean aphid. SAARC J. Agric., 19(1): 139-154 (2021)

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.

Effects of intersowing with beans on the spread of groundnut rosette virus by Aphis craccivora Koch (Hemiptera, Aphididae) in Malawi

1976 ◽  
Vol 66 (2) ◽  
pp. 331-333 ◽  
Author(s):  
J. A. K. Farrell
Keyword(s):  
Phaseolus Vulgaris ◽  
Arachis Hypogaea ◽  
Virus Disease ◽  
High Density ◽  
Aphis Craccivora ◽  
Plant Populations ◽  
Bean Plants ◽  
Aphis Craccivora Koch ◽  
Field Beans

AbstractIn two trials, at Chitedze, Malawi, in 1966–1967, the spread of rosette virus disease in groundnuts (Arachis hypogaea) intersown with field beans (Phaseolus vulgaris) was less than the spread in groundnut monocultures comprising plant populations equivalent to the number of groundnut plants and to the total number of plants in the intersown crop. In one trial, numbers of early rosette transmissions were related to numbers of alate Aphis craccivora Koch, the vector of the virus, found on groundnut plants. Immigrant alate A. craccivora settling on the intersown crop were trapped by the hooked epidermal hairs of the bean plants and the observed reduction of rosette infection in the intersown crop was attributed to this effect. Inter-sowing with beans is considered less effective than early-sown, high-density monoculture as a method of reducing groundnut rosette infections and yields of groundnuts from inter-sown crops may be lower than those obtained from high-density monoculture.

Behavioural response of alate Aphis craccivora Koch (Homoptera: Aphididae) to volatiles from different cowpea cultivars

2019 ◽  
Vol 143 (6) ◽  
pp. 659-669
Author(s):  
Seydou Diabate ◽  
Emilie Deletre ◽  
Lucy Kananu Murungi ◽  
Komi K.M. Fiaboe ◽  
John Wesonga ◽  
...  
Keyword(s):  
Behavioural Response ◽  
Aphis Craccivora ◽  
Cowpea Cultivars ◽  
Aphis Craccivora Koch

scholarly journals Resistance in alfalfa to Aphis craccivora Koch

2015 ◽  
Vol 75 (4) ◽  
pp. 451-456 ◽  
Author(s):  
Lilian R Descamps ◽  
Carolina Sánchez-Chopa ◽  
Jorge Bizet-Turovsky
Keyword(s):  
Aphis Craccivora ◽  
Aphis Craccivora Koch
Sign in / Sign up

Export Citation Format

Share Document