scholarly journals Manejo integrado de plagas como estrategia para el control de la mosca del botón floral del maracuyá Dasiops inedulis Steyskal (Diptera: Lonchaeidae)

2012 ◽  
Vol 13 (1) ◽  
pp. 31 ◽  
Author(s):  
Edgar Mauricio Quintero ◽  
Isabel Cristina Lopez ◽  
Takumasa Kondo

<p>En el presente estudio se colectaron cuatro parasitoides de <em>Dasiops inedulis </em>Steyskal (Diptera: Lonchaeidae), i.e., uno de tipo larva-pupa identificado como <em>Utetes anastrephae </em>(Viereck) (Hymenoptera: Braconidae), y tres parasitoides de pupas identificados como <em>Pachycrepoideus vindemmiae </em>Rondani, <em>Spalangia </em>sp. (Hymenoptera: Pteromalidae) y <em>Aganaspis </em>sp. (Hymenoptera: Figitidae). En el campo se observaron daños ocasionados por una larva de Chrysopidae (Neuroptera) sobre pupas centinelas de<em>D. inedulis</em>. Se realizaron experimentos con un cebo tóxico de origen natural a base de <em>Saccharopolyspora spinosa </em>en los municipios de Palmira y Toro, en el departamento del Valle del Cauca, destacándose como una nueva alternativa para el control de <em>D. inedulis </em>en maracuyá amarillo, ya que en las dos localidades mantuvo los niveles de daño por debajo del manejo convencional del agricultor y el testigo absoluto. Se provee una lista de enemigos naturales de <em>D. inedulis </em>tomada mediante muestreos de botones florales de maracuyá, uso de pupas centinelas, e información en la literatura científica. Para el control de la mosca del botón floral del maracuyá, <em>D. inedulis</em>, se propone una estrategia de manejo integrado de plagas que le permitirán al productor mantener las poblaciones de <em>D. inedulis </em>reguladas con diferentes herramientas, i.e., enemigos naturales que se pueden incorporar en diferentes etapas de la fenología de <em>D. inedulis</em>, uso de cebos tóxicos de baja toxicidad, recolección de botones con síntomas de daño, y monitoreo con el uso de trampas McPhail cebadas con proteína hidrolizada, interviniendo en diferentes estados de desarrollo, cortando ciclos y disminuyendo así futuras generaciones del insecto. </p><p> </p><p><strong>Integrated pest management as a strategy to control the passionfruit flower-bud fly, <em>Dasiops inedulis</em>Steyskal (Diptera: Lonchaeidae)</strong></p><span> Four parasitoids of the passion fruit flower bud fly, </span><em>Dasiops inedulis </em><span>Steyskal (Diptera: Lonchaeidae) were collected in the present study, i.e., a larva-pupa type parasitoid, </span><em>Utetes anastrephae </em><span>(Viereck) (Hymenoptera: Braconidae), and three pupal parasitoids, namely </span><em>Pachycrepoideus vindemmiae</em><span>Rondani, </span><em>Spalangia </em><span>sp. (Hymenoptera: Pteromalidae) and</span><em>Aganaspis </em><span>sp. (Hymenoptera: Figitidae). In the field we observed a species of Chrysopidae (Neuroptera) larva feeding on the sentinel pupae of </span><em>D. inedulis</em><span>. We conducted experiments in the municipalities of Palmira and Toro, in the State of Valle del Cauca, Colombia, on the efficiency of a toxic bait made from the bacteria </span><em>Saccharopolyspora spinosa</em><span>, standing out as a new alternative for controlling </span><em>D. inedulis</em><span>on yellow passion fruit. This toxic bait maintained the injury levels below the conventional management used by the farmers and the control plots in both study areas. A list of natural enemies of </span><em>D. inedulis </em><span>was compiled by inspecting passion fruit flower buds, using sentinel pupae, and information taken from the literature. For the control of </span><em>D. inedulis</em><span>, an integrated pest management strategy is proposed that will allow the farmer to maintain </span><em>D. inedulis </em><span>populations under control with different management tools, i.e., natural enemies which can be incorporated at different stages of development of </span><em>D. inedulis</em><span>, low toxicity baits, recollection of flower buds with symptoms of damage, monitoring with McPhail traps baited with protein hydrolysate, thus intervening at different stages the development of the lonchaeid fly pest, breaking its life cycle and thus decreasing their populations in future generations.</span>

2009 ◽  
Vol 10 (2) ◽  
pp. 141 ◽  
Author(s):  
Oscar Santos Amaya ◽  
Edgar Herney Varón Devia ◽  
Jordano Salamanca

<p>Las moscas negras de la fruta (<em>Dasiops </em>spp.) son responsables de la caída de los botones florales y del daño en frutos en el cultivo de granadilla (<em>Passiflora ligularis </em>Juss.), causando pérdidas económicas a los cultivadores. El objetivo de este estudio fue determinar qué especies atacan botones florales y frutos de granadilla en el sur del Huila, evaluar y caracterizar el daño, conocer los enemigos naturales de <em>Dasiops inedulis </em>y evaluar el efecto insecticida de nueve extractos vegetales acuosos sobre adultos. Se muestrearon 30 fincas de granadilla en los municipios de Pitalito, Palestina, Isnos y Gigante (Huila, Colombia). Se encontraron las especies <em>Dasiops inedulis </em>infestando botones florales <em>y D. yepezi</em>, frutos. Los porcentajes de infestación de <em>D. inedulis </em>en botones florales oscilaron entre 3,87 ± 2,78 en Isnos y 24,60 ± 5,36 en Pitalito. Se encontró que el ataque fue más frecuente en botones de tamaño medio (2-4 cm). La relación de sexos fue de 1:1. Los enemigos naturales de <em>D. inedulis </em>encontrados fueron: <em>Aspilota </em>sp., <em>Pentapria </em>sp., <em>Basalys </em>sp., <em>Pachycrepoideus vindemmiae </em>y una especie de la subfamilia Eucoilinae. Los extractos vegetales que provocaron la mortalidad más cercana al testigo comercial en condiciones de casa de malla fueron los de <em>Hura crepitans </em>(Euphorbiaceae) al 5% (72,5% mortalidad) y <em>Ricinus communis </em>(Euphorbiaceae) al 25% (40% mortalidad); en las condiciones anteriores y en campo, el testigo comercial fue siempre más efectivo que los extractos vegetales. En condiciones de campo, el extracto que se diferenció del testigo absoluto fue el de <em>R. communis </em>al 25% con 40% de mortalidad.   </p><p> </p><p><strong>Testing of botanical extracts for the control of </strong><strong><em>Dasiops </em></strong><strong>spp</strong><strong><em>. </em></strong><strong>on sweet passion fruit (</strong><strong><em>Passiflora ligularis </em></strong><strong>Juss.) in the Huila region of Colombia</strong>  </p><p>Lance flies <em>Dasiops </em>spp., are responsible for the flower bud drop and fruit damage in sweet passion fruit (<em>Passiflora ligularis </em>Juss.) crop plantations, and cause economic losses to the growers. This study aimed to clarify what species of lance flies are attacking the sweet passion fruit flower buds inthe Southern part of Huila province (Colombia), to evaluate and characterize its damage, to identify its natural enemies present at the crop and finally to evaluate the insecticidal effect of nine aqueous botanical extracts over the survival of <em>Dasiops inedulis </em>adults. In Pitalito, Palestina, Isnos and Gigante (Huila), thirty granadilla farms were sampled and the species <em>D. inedulis </em>was found attacking flower buds and <em>D. yepezi </em>was found attacking fruits. The percentage of bud infestation levels of <em>D. inedulis </em>ranged between 3.87 ± 2.78 at Isnos and 24.60 ± 5.36 at Pitalito. The most common attacked flower buds size were 2-4 cm long. The sex ratio was 1:1. The natural enemies obtained from the rearing were the parasitoids <em>Aspilota </em>sp., <em>Pentrapia </em>sp., <em>Basalys </em>sp., <em>Pachycrepoideus vindemmiae</em>, and a specie from Eucoilina<em>e </em>subfamily. The best botanical extracts under greenhouse conditions were <em>Hura crepitans </em>(Euphorbiaceae) at 5% (72.5% mortality) and <em>Ricinus communis </em>at 25% (52.5% mortality). In field conditions, the <em>R. communis </em>(Euphorbiaceae) extract at 25% caused a significant higher mortality (40% mortality) compared to the control. Under both, field and greenhouse conditions, the commercial control was always more effective than the botanical extracts tested. </p>


Insects ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 74
Author(s):  
Xiao-wei Li ◽  
Xin-xin Lu ◽  
Zhi-jun Zhang ◽  
Jun Huang ◽  
Jin-ming Zhang ◽  
...  

Intercropping of aromatic plants provides an environmentally benign route to reducing pest damage in agroecosystems. However, the effect of intercropping on natural enemies, another element which may be vital to the success of an integrated pest management approach, varies in different intercropping systems. Rosemary, Rosmarinus officinalis L. (Lamiaceae), has been reported to be repellent to many insect species. In this study, the impact of sweet pepper/rosemary intercropping on pest population suppression was evaluated under greenhouse conditions and the effect of rosemary intercropping on natural enemy population dynamics was investigated. The results showed that intercropping rosemary with sweet pepper significantly reduced the population densities of three major pest species on sweet pepper, Frankliniella intonsa, Myzus persicae, and Bemisia tabaci, but did not affect the population densities of their natural enemies, the predatory bug, Orius sauteri, or parasitoid, Encarsia formosa. Significant pest population suppression with no adverse effect on released natural enemy populations in the sweet pepper/rosemary intercropping system suggests this could be an approach for integrated pest management of greenhouse-cultivated sweet pepper. Our results highlight the potential of the integration of alternative pest control strategies to optimize sustainable pest control.


1998 ◽  
Vol 81 (1) ◽  
pp. 131 ◽  
Author(s):  
Marjorie A. Hoy ◽  
D. Smith ◽  
G. A. C. Beattie ◽  
R. Broadley

2005 ◽  
Vol 35 (1) ◽  
pp. 204-208 ◽  
Author(s):  
Moacyr Mascarenhas Motta Miranda ◽  
Marcelo Coutinho Picanço ◽  
José Cola Zanuncio ◽  
Leandro Bacci ◽  
Ézio Marques da Silva

The objective of this work was to evaluate the impact of integrated pest management (IPM) in the productivity of the tomato and in the populations of leafminers, fruit borers, and natural enemies in tomato crops. The treatments were calendar (spraying twice weekly with insecticides and fungicides), IPM (spraying when action thresholds were achieved), and control (no pesticide was applied). IPM was the most efficient system of pest control due to presenting similar productivity and 65.6% less pesticide applications than in the calendar. The attack of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) and Liriomyza spp. (Diptera: Agromyzidae) to the leaves only achieved the action threshold in the final phase of the cultivation. The main fruit borer was Neoleucinoides elegantalis (Guen.) (Lepidoptera: Crambidae), followed by T. absoluta and Spodoptera eridania (Cr.) (Lepidoptera: Noctuidae). The natural enemy populations were severely reduced by excessive pesticide applications. Predators were more abundant than parasitoids. The most abundant predators were Araneidae, Anthicus sp. (Coleoptera: Anthicidae), Cycloneda sanguinea larva (L.) (Coleoptera: Coccinellidae), Staphylinidae adults (Coleoptera), Orius sp. and Xylocoris sp. (Hemiptera: Anthocoridae), Formicidae (Hymenoptera), and Phlaeothripidae (Thysanoptera). The most abundant parasitoids were Hymenoptera of the families Eulophidae, Braconidae (Bracon sp. and Chelonus sp.), Trichogrammatidae [Trichogramma pretiosum (Riley)] and Bethylidae (Goniozus nigrifemur Ashmead), besides Tachinidae (Diptera).


2007 ◽  
Vol 9 (4) ◽  
pp. 327-335 ◽  
Author(s):  
M. C. Picanço ◽  
L. Bacci ◽  
A. L. B. Crespo ◽  
M. M. M. Miranda ◽  
Júlio C. Martins

2018 ◽  
Vol 85 (0) ◽  
Author(s):  
Gabriella Aparecida Salis de Carvalho ◽  
Daniel Júnior Martins ◽  
Isadora Mileny Costa de Brito ◽  
Sebastião Lourenço de Assis Júnior ◽  
Marcus Alvarenga Soares ◽  
...  

ABSTRACT: The entomopathogen Bacillus thuringiensis (Bt) is widely used as one of the ingredients in pest control formulations, but researches conducted on its effect on non-target organisms are still in the nascent stage. This investigation aimed to uncover if Bt treated with Tenebrio molitor (Coleoptera: Tenebrionidae) larvae and pupae could affect the biological variables of Podisus nigrispinus (Hemiptera: Pentatomidae) and Palmistichus elaeisis (Hymenoptera: Eulophidae), all of which established natural enemies of leaf defoliator caterpillars in the eucalyptus culture. Larvae of T. molitor were fed on wheat bran containing different concentrations of B. thuringiensis (0.00; 0.25; 0.50; 1.00; 2.00 and 4.00 g Agree/kg bran). When the larvae attained size of about 2 cm, they were used as prey for P. nigrispinus (Bioassay I), and their pupae used as hosts for P. elaeisis (Bioassay II). Only the biological variables oviposition period and egg numbers by posture of the predator P. nigrispinus were altered. The biological variables of P. elaeisis were not altered, since it was possible to use these control methods within the integrated pest management.


2019 ◽  
Vol 37 ◽  
Author(s):  
G.L.D. LEITE ◽  
P.D. PAULO ◽  
L.D. TUFFI-SANTOS ◽  
A.C. ALVARENGA ◽  
M.A. SOARES ◽  
...  

ABSTRACT: Information on selective herbicide, including glyphosate that does not affect non-target organisms such as natural enemies, are important in integrated pest management programs in maize. The dose 13.94 L ha-1 of glyphosate was evaluated in females on 10 Trichogrammatidae species. A female of each Trichogrammatidae species was individually positioned per test tube with a card containing approximately 45 Anagasta kuehniella Zeller, 1879 (Lepidoptera: Pyralidae) eggs. For 48 h parasitism was allowed, and later the cartons were sprayed with the herbicide or with distilled water, for the control treatment. The glyphosate showed variable effects for parasitoids. The emergence of T. acacioi females was lower but that of T. atopovilia, T. demoraesi, and T. pretiosum higher with the glyphosate. The sex ratio of T. galloi was lower and that of T. bruni, T. brasiliensis, T. demoraesi, and T. soaresi higher with glyphosate. This glyphosate was innocuous to all Trichogrammatidae species females based on the classification adopted internationally.


2017 ◽  
Vol 2 (1) ◽  
pp. 34 ◽  
Author(s):  
Mujiono Mujiono ◽  
Tarjoko Tarjoko ◽  
Samuji Samuji

Impact of integrated Pest management (IPM) for cacao pod borer attack (Conopomorpha cramella (Sn.)) (Lepidoptera: Gracillariidae) dan Helopeltis sp.(Hemiptera : Miridae). Research on impact of integrated Pest management (IPM) for cacao pod borer attack (Conopomorpha cramella (Sn.)) and Helopeltis sp. had been conducted at Tumbik Melayu Village, Teluk bayur District, Berau Regency, in East Kalimantan, starting from May to September 2002. It used nested classification design. IPM practices applied in this research were pruning, balanced fertilization, weeding, field sanitation (leaf mulch), light pruning, fregment harvesting (every week), burrying of pod shell, and wrapping of young pod in week 15th. Result of the research revealed that IPM application could reduce the cacao pod borer attack reaching: a) light category before treatments from 41.29 to 15.00%; b) heavy category before treatments from 20.56 to 0 and 23.37%, compare to farmer plot. IPM implementation were able to increase percentage of healthy pod up to 18.66% compared to farmer plot. Beside it could suppers development of Helopeltis sp. population up to 24%. The dominant natural enemies were spider as many as 1.34 individuals per plant on IPM plot and 0.6 spider per plant on farmer plot (non IPM). Application of IPM practices were able to increase agronomic character: a) number of flower up to 37.22% when compare to farmer plot, and b) number of fruits until 5.56%, whereas number of young fruits decrease up 13.25%.


2002 ◽  
Vol 55 ◽  
pp. 188-192 ◽  
Author(s):  
P.J. Workman ◽  
N.A. Martin

Populations of onion thrips Thrips tabaci and their natural enemies were monitored in small field plots of onions to which standard insecticide (methamidophos endosulfan and chlorpyrophos) selective insecticide (imidacloprid and spinosad) organic (YR015) insecticide or no insecticide treatments were applied The mean number of thrips per plant was kept below 12 in the standard and selective treatments The numbers of thrips in the organic and no insecticide treatments were comparable reaching over 60 thrips per plant This resulted in increased plant damage and shorter leaves High rainfall in 200102 coincided with a reduction in thrips numbers in untreated plots which peaked at 70 thrips per plant compared with nearly 500 thrips per plant in the drier 200001 season Natural enemies observed in the unsprayed and organic treatments included Ceranisius menes Aeolothrips fasciatum Buchananiella whitei syphids and entomogenous fungi None of these natural enemies increased sufficiently to provide effective thrips control No natural enemies were found in the standard or selective insecticide treated plots


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