scholarly journals Biology and feeding potential Episyrphus balteatus De Geer (Diptera: Syrphidae) on green apple aphid Aphis pomi De Geer (order Hemiptera: Aphididae) in Hills of Shimla, (H.P.), India

2020 ◽  
Vol 21 (1&2) ◽  
pp. 147-150
Author(s):  
Meena Kumari

In the  present study three species of syrphid predators were found feeding on green apple aphid on the apple nursery plants. These species are Betasyrphus serarius (Wiedemann), Episyrphus balteatus De Geer, and Metasyrphus confrater (Wiedemann). These syrphid species belonging to Family Syrphidae of order Diptera. Observations were made on Episyrphus balteatus De Geer a syrphid predator of green apple aphid, Aphis pomi De Geer in Shimla Hills of Himachal Pradesh, India. The larval stages of Episyrphus balteatus De Geer, was found to predate upon the green apple aphid, Aphis pomi De Geer which is a serious pest of apple nursery plants in Himachal Pradesh which is the main apple growing state of India. Feeding potential of larval stages of Episyrphus balteatus De Geer was recorded during summer and autumn season. Present studies show that the larvae of this species can effectively control the populations of green apple aphid, Aphis pomi De Geer in the apple orchards and nurseries.

1957 ◽  
Vol 37 (4) ◽  
pp. 423-433 ◽  
Author(s):  
C. V. G. Morgan ◽  
N. H. Anderson

In apple orchards at Summerland, B.C., four applications of 100 per cent ryania at 48 lb. per acre per application, with glyodin as the fungicide, gave control of light infestations of the codling moth, Carpocapsa pomonella (L.), similar to that from four sprays of 50 per cent DDT at 12 lb. per acre, with lime-sulphur, ferbam, and wettable sulphur. In a heavily-infested orchard, ryania was inferior to DDT. The ryania-glyodin schedule also controlled the woolly apple aphid, Eriosoma lanigerum (Hausm.), and the apple aphid, Aphis pomi DeG. It had little detrimental effect on predacious mites. Except for the apple rust mite, Vasates schlechtendali (Nal.), phytophagous mites were usually not so troublesome where the modified schedule was used.Packing-house records showed that the ryania-glyodin schedule reduced the size and lowered the grade of McIntosh, Newtown, and Delicious apples, and reduced the size of Red Delicious. Grade of Red Delicious was better with the modified than with the standard schedule. The 1954 applications of the modified schedule evidently reduced the size of the 1955 crops on all varieties; most seriously affected were McIntosh with 76.2 per cent reduction and Delicious with 53.7 per cent.


2011 ◽  
Vol 23 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Surender Kumar ◽  
Rahul Mohan Singh ◽  
Raja Ram ◽  
J. Badyal ◽  
Vipin Hallan ◽  
...  

Author(s):  
Debasis Sahoo

Gastronomic activities like tasting of local cuisines, visiting of apple orchards, tea gardens, fruit marts, and attending cookery classes have always been an integral part of tour itinerary in Himachal Pradesh. Tourists rejoice it as a means of entertainment as well as cultural learning. The growing trend of gastronomy tourism and development of specific tourism policy under the theme of ‘Agro/Organic Tourism' is certainly going to increase the demand for ‘gastronomic tour guides' in coming years. Hence the present research tries to analyse the tour guides' perception about Gastronomy Tourism in Himachal Pradesh, their background knowledge, and opinion about the branding of Himachali Cuisine. Responses from 120 tour guides were collected through a survey instrument via convenience sampling. The analysis depicts the requirement of specialized food guide training programs, attracting young and women tour guides into the profession and emphasis on branding of Himachali Cuisine through listing of ethnic restaurants, preparation of gastronomic map, and organisation of culinary tours and events.


1989 ◽  
Vol 24 (1) ◽  
pp. 145-149 ◽  
Author(s):  
D. G. Pfeiffer ◽  
M. W. Brown ◽  
M. W. Varn

Spirea aphid, Aphis spiraecola Patch, greatly outnumbered [87% A. spiraecola (S.D. ± 3.4)] apple aphid, Aphis pomi DeGeer, in apple orchards sampled in spring of 1986 in Virginia, West Virginia and Maryland. Apple as a primary host of A. spiraecola was shown for the first time by the presence of oviparae in the fall and fundatrices in the spring. Based on this survey, we suggest future research with “apple aphids” include species determination and preservation of voucher specimens.


2018 ◽  
Vol 75 (1) ◽  
pp. 39
Author(s):  
Rakesh Sharma ◽  
V.K. Sharma ◽  
S.D. Sharma

Sign in / Sign up

Export Citation Format

Share Document