scholarly journals Evaluation of Reduced-Risk Insecticides to Control Chilli Thrips (Thysanoptera: Thripidae) and Conserve Natural Enemies on Ornamental Plants

2018 ◽  
Vol 101 (2) ◽  
pp. 237-243 ◽  
Author(s):  
Adam G. Dale ◽  
Matthew A. Borden
2017 ◽  
Vol 30 (4) ◽  
pp. 236 ◽  
Author(s):  
K. Selvaraj ◽  
R. Sundararaj ◽  
T. Venkatesan ◽  
Chandish R. Ballal ◽  
S. K. Jalali ◽  
...  

A invasive rugose spiraling whitefly (RSW) <em>Aleurodicus rugioperculatus</em> Martin (Hemiptera: Aleyrodidae) was found infesting coconut, banana, custard apple and several ornamental plants in Tamil Nadu, Andhra Pradesh and Kerala for the first time in India. The identity of the pest species was determined through morphological and molecular tools. Furthermore cytochrome c oxidase-I gene (658 bp) of RSW was sequenced (GenBank accession number KY209909) which would serve as an ideal molecular diagnostic marker for its identification irrespective of its phenotypic plasticity. During the survey, several natural enemies were recorded and maximum parasitism was recorded by <em>Encarsia guadeloupae</em> Viggiani (Hymenoptera: Aphelinidae) and its COI gene was sequenced and deposited as <em>Encarsia</em> sp. (GenBank accession number KY223606). Per cent parasitism ranged from 20.0 to 60.0 % in different collection locations, highest parasitism being recorded in Kerala as compared to other states. The predators recorded were <em>Mallada</em> sp., few coccinellids and predatory mites. This communication is the first report of the rugose spiraling whitefly, its host plant range and associated natural enemies in India.


2018 ◽  
Vol 9 (1) ◽  
pp. 59-65
Author(s):  
Fatima Ramdan Muhamed Al Kawan ◽  
◽  
Bagyo Yanuwiadi ◽  
Zaenal Fanani

2018 ◽  
Author(s):  
P. Amouroux ◽  
D. Crochard ◽  
M.C.G. Correa ◽  
G. Groussier ◽  
P. Kreiter ◽  
...  

AbstractScale insects (Hemiptera: Coccoidea) are key pests of agricultural crops and ornamental plants worldwide. Their populations are difficult to control, even with insecticides, due to their cryptic habits. Moreover, there is growing concern over the use of synthetic pesticides for their control, due to deleterious environmental effects and the emergence of resistant populations of target pests. In this context, biological control may be an effective and sustainable approach. Hymenoptera Chalcidoidea includes natural enemies of scale insects that have been successfully used in many biological control programs. However, the correct identification of pest scale species and their natural enemies is particularly challenging because these insects are very small and highly specialized. Integrative taxonomy, coupling DNA barcoding and morphological analysis, has been successfully used to characterize pests and natural enemy species. In this study, we performed a survey of parasitoids and predators of armored and soft scales in Chile, based on 28S and COI barcodes. Fifty-three populations of Diaspididae and 79 populations of Coccidae were sampled over the entire length of the country, from Arica (18°S) to Frutillar (41°S), between January 2015 and February 2016. The phylogenetic relationships obtained by Bayesian inference from multilocus haplotypes revealed 40 putative species of Chalcidoidea, five Coccinellidae and three Neuroptera. In Chalcidoidea, 22 species were identified morphologically, resulting in new COI barcodes for 12 species and new 28S barcodes for 14 species. Two predator species (Rhyzobius lophantae and Coccidophilus transandinus) were identified morphologically, and two parasitoid species, Chartocerus niger and Signiphora bifasciata, were recorded for the first time in Chile.


2014 ◽  
Vol 97 (3) ◽  
pp. 972-978 ◽  
Author(s):  
Haleigh A. Ray ◽  
Marjorie A. Hoy
Keyword(s):  

2021 ◽  
Vol 80 (04) ◽  
pp. 142-144
Author(s):  
Carla BALIOTTE ◽  
Daniel A. AQUINO ◽  
Juan P. BOUVET ◽  
Gimena DELLAPÉ

The Psyllidae family is the most diverse within Psylloidea, with more than 1,300 species worldwide. Some psyllid species are important pests mainly of fruit trees, forest and ornamental plants. Despite being an economically relevant group, there are few studies on its biology, geographic distribution, natural enemies or host plant associations for many Argentinean psyllid species. This work records one species from Argentina for the first time, extends the distribution of another two psyllid species and provides information on host plants.


2018 ◽  
Vol 32 (1) ◽  
pp. 20
Author(s):  
SUMAN SANJTA ◽  
USHA CHAUHAN ◽  
PAWAN KUMAR MEHTA ◽  
◽  
◽  
...  

2017 ◽  
Vol 30 (4) ◽  
pp. 236
Author(s):  
K. Selvaraj ◽  
R. Sundararaj ◽  
T. Venkatesan ◽  
Chandish R. Ballal ◽  
S. K. Jalali ◽  
...  

A invasive rugose spiraling whitefly (RSW) <em>Aleurodicus rugioperculatus</em> Martin (Hemiptera: Aleyrodidae) was found infesting coconut, banana, custard apple and several ornamental plants in Tamil Nadu, Andhra Pradesh and Kerala for the first time in India. The identity of the pest species was determined through morphological and molecular tools. Furthermore cytochrome c oxidase-I gene (658 bp) of RSW was sequenced (GenBank accession number KY209909) which would serve as an ideal molecular diagnostic marker for its identification irrespective of its phenotypic plasticity. During the survey, several natural enemies were recorded and maximum parasitism was recorded by <em>Encarsia guadeloupae</em> Viggiani (Hymenoptera: Aphelinidae) and its COI gene was sequenced and deposited as <em>Encarsia</em> sp. (GenBank accession number KY223606). Per cent parasitism ranged from 20.0 to 60.0 % in different collection locations, highest parasitism being recorded in Kerala as compared to other states. The predators recorded were <em>Mallada</em> sp., few coccinellids and predatory mites. This communication is the first report of the rugose spiraling whitefly, its host plant range and associated natural enemies in India.


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