scholarly journals Natural parasitism of hymenoptera (insect) on bruquids associated with Fabaceae seeds in Northern Sinaloa, Mexico

2020 ◽  
Vol 16 (6) ◽  
pp. 902-908
Author(s):  
N. Isiordia-Aquino ◽  
G. A. Lugo-García ◽  
A. Reyes-Olivas ◽  
J. A. Acuña-Soto ◽  
J. L. Arvizu-Gómez ◽  
...  
Keyword(s):  
Natural Parasitism

Natural parasitism of eggs of yellow stem borer, Scirpophaga incertulas Walker (Lepidoptera: Crambidae) in rice ecosystem at Tiruchirappalli, Tamil Nadu

ENTOMON ◽  
2020 ◽  
Vol 45 (3) ◽  
pp. 181-188
Author(s):  
T. Sharmitha ◽  
C. Gailce Leo Justin ◽  
S. Sheeba Joyce Roseleen ◽  
P. Yasodha
Keyword(s):  
Field Study ◽  
Tamil Nadu ◽  
Host Density ◽  
Stem Borer ◽  
Scirpophaga Incertulas ◽  
Egg Masses ◽  
Yellow Stem Borer ◽  
Rice Ecosystem ◽  
Natural Parasitism

Three species of parasitoids viz., Telenomus dignus Gahan, Trichogramma japonicum, Ishii and Tetrastichus schoenobii Ferriere were recorded from the egg masses of rice yellow stem borer, Scirpophaga incertulas (Walker) in a field study. The extent of parasitism was high during Rabi (43.33 – 93.33 %) and low during Kharif (0 - 40.00 %). Parasitism by T. dignus was maximum in October (50.00 %), T. japonicum, in November (23.08 %) and T. schoenobii in February (55.55 %). dignus and T. schoenobii in combination parasitized maximum number of egg masses (41.82 %). Multiple parasitism by the three species was high in December (8.33 %) and January (7.14%). Parasitic potential was maximum, when T. schoenobii alone parasitised the egg masses followed by T. dignus and T. schoenobii in combination. Host density in the field influenced the extent of parasitism.

scholarly journals Integrative taxonomy and phylogeography of Telenomus remus (Scelionidae), with the first record of natural parasitism of Spodoptera spp. in Brazil

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ana P. G. S. Wengrat ◽  
Aloisio Coelho Junior ◽  
Jose R. P. Parra ◽  
Tamara A. Takahashi ◽  
Luis A. Foerster ◽  
...  
Keyword(s):  
Biological Control ◽  
Mitochondrial Gene ◽  
First Record ◽  
Mass Rearing ◽  
Classical Biological Control ◽  
Egg Parasitoid ◽  
Integrative Approach ◽  
Agricultural Pests ◽  
Telenomus Remus ◽  
Natural Parasitism

AbstractThe egg parasitoid Telenomus remus (Hymenoptera: Scelionidae) has been investigated for classical and applied biological control of noctuid pests, especially Spodoptera (Lepidoptera: Noctuidae) species. Although T. remus was introduced into Brazil over three decades ago for classical biological control of S. frugiperda, this wasp has not been recorded as established in corn or soybean crops. We used an integrative approach to identify T. remus, combining a taxonomic key based on the male genitalia with DNA barcoding, using a cytochrome c oxidase subunit I mitochondrial gene fragment. This is the first report of natural parasitism of T. remus on S. frugiperda and S. cosmioides eggs at two locations in Brazil. We also confirmed that the T. remus lineage in Brazil derives from a strain in Venezuela (originally from Papua New Guinea and introduced into the Americas, Africa, and Asia). The occurrence of T. remus parasitizing S. frugiperda and S. cosmioides eggs in field conditions, not associated with inundative releases, suggests that the species has managed to establish itself in the field in Brazil. This opens possibilities for future biological control programs, since T. remus shows good potential for mass rearing and egg parasitism of important agricultural pests such as Spodoptera species.

scholarly journals Natural parasitism of Hexacladia smithii Ashmead (Hymenoptera: Encyrtidae) on Euschistus heros (F.) (Hemiptera: Pentatomidae): new record from Mato Grosso State, Brazil

2016 ◽  
Vol 82 (0) ◽  
Author(s):  
Leonardo Morais Turchen ◽  
Vanessa Golin ◽  
Bruna Magda Favetti ◽  
Alessandra Regina Butnariu ◽  
Valmir Antônio Costa
Keyword(s):  
Biological Control ◽  
New Record ◽  
Insect Pest ◽  
First Record ◽  
Insect Control ◽  
Conventional System ◽  
Mato Grosso ◽  
Random Samples ◽  
Euschistus Heros ◽  
Natural Parasitism

The neotropical stink brown bug, Euschistus heros (F.) (Hemiptera: Pentatomidae), is an insect pest to soybean crops in Mato Grosso State, Brazil. In this region, synthetic insecticides are frequently used for insect control. An alternative to the indiscriminate use of insecticides is the biological control with parasitoids. Thus, the objective of this study was to conduct the survey of parasitoids that use E. heros adults as hosts. Random samples were conducted during the harvests of 2009/10 and 2010/11 in two farms that produce soybean (conventional system) in Tangará da Serra, Mato Grosso State, Brazil. The total number of collected E. heros was: 297 (Field 1) and 293 (Field 2) in 2009/10 and 295 (Field 1) and 376 (Field 2) in 2010/11. Of these, 1.50 (Field 1) and 13.99% (Field 2) were parasitized in 2009/10 and 8.47 (Field 1) and 7.45% (Field 2) in 2010/11. The parasitoids found were Hexacladia smithii Ashmead (Hymenoptera: Encyrtidae) in both fields. This is the first record of parasitism in E. heros adults in the state of Mato Grosso, Brazil.

GROUND RELEASES OF TRICHOGRAMMA MINUTUM RILEY (HYMENOPTERA: TRICHOGRAMMATIDAE) AGAINST THE SPRUCE BUDWORM (LEPIDOPTERA: TORTRICIDAE)

1987 ◽  
Vol 119 (3) ◽  
pp. 251-263 ◽  
Author(s):  
S.M. Smith ◽  
M. Hubbes ◽  
J.R. Carrow
Keyword(s):  
Optimal Strategy ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Egg Mass ◽  
Northern Ontario ◽  
Inundative Release ◽  
Egg Masses ◽  
Trichogramma Minutum ◽  
Spruce Stands ◽  
Natural Parasitism

AbstractDuring 1982 and 1984, ground releases of Trichogramma minutum Riley were assessed for control of the spruce budworm, Choristoneura fumiferana (Clemens), on 12- to 20-year-old, white spruce stands in northern Ontario. Maximum parasitism of susceptible egg masses was 16 and 87% following the release of 480 000 and 12 million female T. minutum per hectare, respectively. Releases at intervals of 1 week maintained parasitism of susceptible egg masses at constant levels throughout the oviposition period of spruce budworm. When parasitism of susceptible egg masses was maintained above 78.2% during the ovipositional period, total egg mass parasitism averaged 58.0% and resulted in an 80.3% reduction of overwintering 2nd-instar larvae. The optimal strategy for reducing spruce budworm was two releases of T. minutum at an interval of 1 week in the ovipositional period. This allowed a second generation of parasitoids to emerge from the spruce budworm eggs that were more efficient in maintaining high levels of parasitism than those emerging from the standard rearing host. Natural parasitism of spruce budworm egg masses was less than 4% and there was no carryover of parasitism in the years following inundative release. The rate of T. minutum release necessary to achieve effective mortality of spruce budworm during outbreak populations is discussed briefly.

scholarly journals Sublethal effects of natural parasitism act through maternal, but not paternal, reproductive success in a wild population

Ecology ◽  
2019 ◽  
Vol 100 (8) ◽  
Author(s):  
Olivia Hicks ◽  
Jonathan A. Green ◽  
Francis Daunt ◽  
Emma J. A. Cunningham ◽  
Mark Newell ◽  
...  
Keyword(s):  
Reproductive Success ◽  
Sublethal Effects ◽  
Wild Population ◽  
Natural Parasitism

scholarly journals Natural Parasitism of Phyllocnistis citrella (Lepidoptera: Gracillariidae) at Cuitlahuac, Veracruz, Mexico

1998 ◽  
Vol 81 (1) ◽  
pp. 30 ◽  
Author(s):  
Nestor Bautista-Martinez ◽  
Jose Luis Carrillo-Sanchez ◽  
Hiram Bravo-Mojica ◽  
Stephen D. Koch
Keyword(s):  
Phyllocnistis Citrella ◽  
Natural Parasitism

Natural parasitism on Anastrepha spp. (Diptera: Tephritidae) over Neotropical region boundaries in northeastern Mexico

2020 ◽  
pp. 1-15
Author(s):  
Martín Berrones-Morales ◽  
Venancio Vanoye-Eligio ◽  
Juana María Coronado-Blanco ◽  
Griselda Gaona-García ◽  
Gerardo Sánchez-Ramos
Keyword(s):  
Neotropical Region ◽  
Northeastern Mexico ◽  
Natural Parasitism

Natural parasitism ofMetaparasitylenchus hypothenemi(Tylenchida: Allantonematidae) on the coffee berry borer in Chiapas, Mexico

2015 ◽  
Vol 25 (5) ◽  
pp. 608-612 ◽  
Author(s):  
Jeanneth Pérez ◽  
Francisco Infante ◽  
George Poinar ◽  
Alfredo Castillo ◽  
Fernando E. Vega
Keyword(s):  
Coffee Berry ◽  
Coffee Berry Borer ◽  
Natural Parasitism
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