scholarly journals The Lepidopteran pests of sweetpotato: First record of Helcystogramma triannulella (Herrich-Schäffer, 1854) (Lepidoptera: Gelechiidae) with population development and natural enemies in Turkey

2016 ◽  
Vol 40 (2) ◽  
Author(s):  
Kamuran Kaya ◽  
Feza Can Cengiz ◽  
Mehmet Emin Çalışkan ◽  
Sevgi Çalışkan
Keyword(s):  
Natural Enemies ◽  
First Record ◽  
Population Development ◽  
Lepidopteran Pests

scholarly journals Insect fauna of pests and their natural enemies inhabiting sorghum-panicles in Egypt

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Hosam M. K. H. El-Gepaly
Keyword(s):  
Natural Enemies ◽  
Dominant Species ◽  
Insect Pest ◽  
Pest Species ◽  
Parasitoid Species ◽  
Insect Fauna ◽  
Cryptoblabes Gnidiella ◽  
Arthropod Species ◽  
Lepidopteran Pests ◽  
Major Pest

AbstractSorghum panicles offer a very rich microenvironment for many insect pest species and their natural enemies. Thirty arthropod species belonging to 28 families, pertaining to 9 orders were obtained from sorghum panicles planted in Sohag Governorate, Egypt, during the 3 successive seasons of 2016–2018. Out of these species were 14 pests, 16 predators, and 3 parasitoids. Lepidopteran and hemipteran pests were the most dominant species-infested sorghum-panicles during the mature stages of the panicles. Three microlepidopteran pests, the noctuid, Eublemma (Autoba) gayneri (Roth.); the pyralid, Cryptoblabes gnidiella Millière, and the cosmopterigid, Pyroderces simplex Walsingham, were recorded as major pest species infesting sorghum panicles in Sohag Governorate. The dipteran parasitoid species, Nemorilla floralis (Fallen) (Tachinidae) emerged from the pupae of the E. gayneri and C. gnidiella, while the hymenopteran parasitoid, Brachymeria aegyptiaca (Chalcididae) was obtained from the pupae of all the studied microlepidopteran pests. Spiders, coccinellids, and Orius spp. were the dominant predators collected form panicles. Post-harvest, larvae, and pupae of lepidopteran pests, especially P. simplex recorded (147, 96, and 79 larvae) and (47, 30, and 73 pupae)/10 panicles in 2016, 2017, and 2018 seasons, respectively.

scholarly journals Aleurocanthus spiniferus (Hemiptera: Aleyrodidae) in Some European Countries: Diffusion, Hosts, Molecular Characterization, and Natural Enemies

Insects ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 42 ◽  
Author(s):  
Francesco Nugnes ◽  
Stefania Laudonia ◽  
Giovanni Jesu ◽  
Maurice Gerardus Maria Jansen ◽  
Umberto Bernardo ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Natural Enemies ◽  
Host Plants ◽  
Biocontrol Agent ◽  
First Record ◽  
New Host ◽  
Ladybird Beetle ◽  
Albanian Population ◽  
First Time

After the first record in 2008 in Southeast Italy, the alien invasive and quarantine pest Aleurocanthus spiniferus (orange spiny whitefly—OSW) has gradually spread throughout Europe, infesting several new host plants in addition to the known hosts. Molecular characterization of some Italian populations and a newly found Albanian population highlighted two different haplotypes invading Europe, belonging to one of the haplogroups previously recorded in China. A predator was recorded for the first time in several fields in Italy in association with OSW and other whitefly species. It was successively identified through a morpho-molecular characterization as a Nearctic member of the tribe Serangiini, the ladybird beetle, Delphastus catalinae. This predator represents a promising biocontrol agent to manage A. spiniferus outbreaks in Italy and other invaded countries.

Management of cereal aphid (Hemiptera: Aphididae) populations and their natural enemies in winter wheat by alternate strip spraying with a selective insecticide

1987 ◽  
Vol 77 (4) ◽  
pp. 677-682 ◽  
Author(s):  
Nick Carter
Keyword(s):  
Winter Wheat ◽  
Natural Enemies ◽  
Natural Enemy ◽  
Rhopalosiphum Padi ◽  
Population Development ◽  
Cereal Aphid ◽  
Metopolophium Dirhodum ◽  
Peak Density ◽  
Selective Insecticide ◽  
Similar Peak

AbstractThe effect on aphid population development of creating natural enemy refuges by spraying only alternate strips of winter wheat with the aphid-specific insecticide pirimicarb at 140 g a.i./ha was compared with those in an unsprayed and a completely sprayed block in south-eastern England. The numbers of Sitobion avenae (F.), Metopolophium dirhodum (Walker) and Rhopalosiphum padi (L.) increased rapidly in the unsprayed block and in the unsprayed strips to reach similar peak densities in early August. Natural enemy activity was similar in these two areas, indicating negligible movement of predators and parasitoids from the sprayed strips to the unsprayed strips. Instead, aphids re-colonized the sprayed strips more quickly than the sprayed block, and the peak density in the former was similar to those in the unsprayed areas.

scholarly journals Pearl Millet: A Green Bridge for Lepidopteran Pests

2017 ◽  
Vol 9 (6) ◽  
pp. 92 ◽  
Author(s):  
Bruna Magda Favetti ◽  
Thaís Lohaine Braga-Santos ◽  
Angélica Massarolli ◽  
Alexandre Specht ◽  
Alessandra Regina Butnariu
Keyword(s):  
Cover Crop ◽  
Insect Pests ◽  
Pupal Stage ◽  
First Record ◽  
The State ◽  
Mato Grosso ◽  
Lepidopteran Pests ◽  
Distrito Federal ◽  
Mocis Latipes ◽  
Urbanus Proteus

This study evaluated the occurrence of lepidopteran pests on millet cultivated in off-season in the state of Mato Grosso, Brazil. Larvae were collected from May to July 2013 in an area of 145 hectares located in Tangará da Serra, MT. After being collected, caterpillars were kept in the laboratory and fed an artificial diet until the pupal stage. After emergence, adults were dry mounted, identified, and deposited in the entomological collection of Embrapa Cerrados, Planaltina, Distrito Federal, Brazil. Adults obtained from 117 caterpillars were identified as Mocis latipes (Guenée), Spodoptera frugiperda (J.E. Smith), Helicoverpa armigera (Hübner), H. zea (Boddie), Mythimna (Pseudaletia) sequax Franclemont, Urbanus proteus (Linnaeus), and Leucania latiuscula Herrich-Schäffer. This study describes the first record of lepidopteran pests on millet plants in the state of Mato Grosso, and the incidence of lepidopterans in the system that uses millet as cover crop represents a risk of the occurrence of insect pests on subsequent crops on the straw of this grass.

scholarly journals Parasitism of Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) by Strongygaster brasiliensis (Towsend) (Diptera: Tachinidae)

2018 ◽  
Vol 11 (1) ◽  
pp. 49-51 ◽  
Author(s):  
Camila Fediuk de Castro-Guedes ◽  
Rodrigo de Vilhena Perez Dios ◽  
Lúcia Massutti de Almeida
Keyword(s):  
Biological Control ◽  
Exotic Species ◽  
Natural Enemies ◽  
Harmonia Axyridis ◽  
Northeast Asia ◽  
First Record ◽  
Harmonia Axyridis Pallas

Abstract. Harmonia axyridis (Pallas) is a Coccinellidae species originating from northeast Asia and used in biological control of aphids. As an exotic species is very important to know its natural enemies. Thus, this paper provides the first record of Strongygaster brasiliensis (Towsend)(Diptera: Tachinidae) parasitizing H. axyridis in Southern Brazil.Parasitismo de Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) por Strongygaster brasiliensis (Towsend)(Diptera: Tachinidae)Resumo. Harmonia axyridis (Pallas) é uma espécie de Coccinellidae originária do Nordeste da Ásia e utilizada como agente de controle biológico de afídeos. Como é uma espécie invasora é muito importante conhecer seus inimigos naturais. Dessa forma, este trabalho fornece o primeiro registro de Strongygaster brasiliensis (Towsend)(Diptera: Tachinidae) parasitando H. axyridis no sul do Brasil.

scholarly journals First record of Orsodacne altra (Coleoptera: Orsodacnidae) and Cyrtosus cyanipennis (Coleoptera: Malachiidae) associated to Dactylopius opuntiae (Hemiptera: Dactylopiidae) in Morocco

2021 ◽  
Vol 90 (3 - Ahead of print) ◽  
pp. 145-151
Author(s):  
Mohamed El Aalaoui ◽  
Mustapha El Bouhssini ◽  
Bouharroud Rachid ◽  
Sbaghi Mohamed
Keyword(s):  
Natural Enemies ◽  
First Record ◽  
Production Areas

Recently Dactylopius opuntiae Dactylopius opuntiae (Cockerell, 1896) (Hemiptera: Dactylopiidae) has caused enormous damage in several production areas of cactus in Morocco. The spread of infestation by this scale pest is fast and unpredictable, and consequently, the destruction of large areas planted with cactus in several regions of the Kingdom. In aim to discover natural enemies that have the capacity and potential to be used as mealybug predators, a team of researchers have conducted surveys in cactus production areas. In January 2020 two unidentified Coleoptera species were observed associated to D. opuntiae in an infested cactus crop in El-Gharbia locality. The observed species were identified as Orsodacne altra (Ahrens, 1810) and Cyrtosus cyanipennis (Erichson, 1840). The current study represents the first register of these two genera associated to cactus mealybug in Morocco.

scholarly journals Invasion of fall armyworm Spodoptera frugiperda, a new invasive pest, alters native herbivore attack intensity and natural enemy diversity

2021 ◽  
Vol 22 (8) ◽  
Author(s):  
Akhmad Rizali ◽  
Oktaviyani Oktaviyani ◽  
Sachristy Putri ◽  
Meygalintang Doananda ◽  
Asti Linggani
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Natural Enemy ◽  
Native Species ◽  
Fall Armyworm ◽  
Invasive Pest ◽  
Lepidopteran Pests ◽  
Maize Field ◽  
Herbivore Attack ◽  
Attack Intensity

Abstract. Rizali A, Oktaviyani, Putri SDPS, Doananda M, Linggani A. 2021. Invasion of fall armyworm Spodoptera frugiperda, a new invasive pest, alters native herbivore attack intensity and natural enemy diversity. Biodiversitas 22: 3482-3488. A new invasive alien pest, fall armyworm Spodoptera frugiperda has been reported widely spread in Indonesia since 2019 and can cause a serious problem in maize cultivation. Its invasion of new habitat may severely impact not only maize production but also native biodiversity including other native pests. This research was aimed to investigate the effect of S. frugiperda invasion on the attack intensity of native herbivores as well as the diversity of natural enemies in maize fields. Field research was conducted in twelve maize fields spread across the district of Malang, Kediri, and Batu, East Java, Indonesia. In each maize field, sampling of S. frugiperda and other insects was conducted by the hand-picking method within four transects with each transect consisting of 100 plants. The results found five species of lepidopteran pests including S. frugiperda, Ostrinia furnacalis, Helicoverpa armigera, Mycalesis sp, and Chrysodeixes sp. S. frugiperda was found with higher attack intensity than other lepidopteran pests. Based on the analysis, the attack intensity of S. frugiperda had a positive relationship with pesticide application and was marginally correlated with plant age and elevation. The infestation of S. frugiperda significantly reduced the attack intensity of other lepidopteran pests as well as the diversity of natural enemies, especially predators. Two native species of parasitoid wasps, Telenomus sp and Mymaridae sp were recorded parasitizing the eggs of S. frugiperda. In conclusion, the infestation of S. frugiperda causes biotic homogenization in the maize field by directly compete with other lepidopteran pests and indirectly eliminate the natural enemy diversity.

scholarly journals Small-scale rearing of Anagasta kuehniella for Trichogramma production

2021 ◽  
Keyword(s):  
Natural Enemies ◽  
Egg Parasitoids ◽  
Ephestia Kuehniella ◽  
Small Scale ◽  
Anagasta Kuehniella ◽  
Lepidopteran Pests ◽  
The World ◽  
Factitious Host

Abstract This book contains 4 chapters focusing on techniques for small-scale rearing of the egg parasitoids Trichogramma spp. in the factitious host Anagasta kuehniella [Ephestia kuehniella]. These parasitoids are among the most widely used natural enemies in the world, and in Brazil are used to control lepidopteran pests in a wide variety of crops.

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