Seasonal Incidence of Pulse Aphid (Aphis craccivora Koch.) and its Natural Enemies on Field Pea (Pisum sativum L.) in Relation to Some Abiotic Factors in Alluvial Zone of West Bengal

2021 ◽  
Author(s):  
S. Pal ◽  
S. Samanta ◽  
A. Banerjee
Keyword(s):  
Relative Humidity ◽  
Pisum Sativum ◽  
Natural Enemies ◽  
West Bengal ◽  
Insect Pests ◽  
Field Pea ◽  
Pest Population ◽  
Pisum Sativum L ◽  
Aphis Craccivora Koch ◽  
Weather Parameters

Background: Field pea, Pisum sativum L. is an important winter-season pulse crop. It is subjected to damage by both field and storage insect pests and approximately 10-15 per cent reduction in yield was reported due to the infestation of different insect pests. Among these, pulse aphid (Aphis craccivora Koch.) affects plant physiology directly by removal of nutrients or indirectly by dispersal of various viral diseases. The present investigation has been aimed to study the seasonal fluctuations of aphids and their natural enemies as well as their correlation. Another objective was to know the effect of various weather parameters on pulse aphids and their natural enemies which ultimately would be helpful to develop a forewarning model.Methods: The field experiment was conducted at the A-B Block Farm of Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal using two varieties of field pea (KPMR 935 and IFPD 122) during rabi seasons of two consecutive years of 2017-18 and 2018-19 following a Randomized Block Design with three replications. After recording the total population of both pests (nymphs and adults) and their natural enemies across the season, the mean population was worked out and used for correlation and regression studies along with the weather parameters. Result: Maximum aphid population was noticed during the peak pod formation stage of the crop irrespective of the varieties. The pest population was very strongly correlated with the incidence of coccinellid and ant population in both test varieties. Among the weather parameters, both maximum and minimum temperature and sunshine hour showed a positive correlation with the pest population and their natural enemies but relative humidity and rainfall showed a negative correlation. Regression studies indicated that temperature and relative humidity were the most influencing factors over the incidence of aphid in both the seasons.

Insect Pests of Black Gram (Vigna mungo L.) and Their Management in Vindhya Region

2020 ◽  
Author(s):  
Indrajeet Singh Rajawat ◽  
Akhilesh Kumar ◽  
M. A. Alam ◽  
R. K. Tiwari ◽  
A, K. Pandey
Keyword(s):  
Natural Enemies ◽  
Insect Pests ◽  
Peak Level ◽  
Negative Influence ◽  
Positive Influence ◽  
Black Gram ◽  
Pest Population ◽  
Aphid Infestation ◽  
Minimum Relative Humidity ◽  
Weather Parameters

A study was conducted during the Kharif season of 2016-17 divulged the beginning of white fly infestation was recorded in the 5th week of July and reached a peak level 10.93 N and A /plant in the 4th week of August and aphid infestation was recorded in the 2nd week of August and reached a peak level 12.40 N and A /plant in the 2nd week of September. Correlation coefficient values for white fly and aphid population incidence and weather parameters showed that maximum and minimum temperature had positive influence while maximum and minimum relative humidity besides rainfall had negative influence on both the pest population. The incidence of ten species of insect pests and six species of natural enemies on the crop from germination to harvesting stages. Out of these insect pests six sap feeder; two defoliator; one stem feeder and one flower feeder were observed to infest in the urdbean. Therewith, six species of natural enemies were observed in the black gram variety T-9 under the agro-climatic condition of district Rewa. Evaluate the efficacy of Flubendiamide 24 % + Thiacloprid 24% SC 200 ml/ha, Flubendiamide 39.35% SC 125 ml/ha, Thiacloprid 21.7% SC 250 ml/ha, Chlorantraniliprole18.5% SC 160 ml/ha, Flubendiamide 24 % + Thiacloprid 24% SC 250 ml/ha, Quinalphos 25% EC 1500 ml/ha, Thiomethoxam 25% WG 125 g/ha and Emamectin benzoate 5% SG 220 g/ha against the Bemisia tabaci and Aphis craccivora. Thiacloprid 21.7% SC was found significantly most effective against white fly while, Thiomethoxam 25% WG was found significantly most effective against aphid.

Mitigation Effects of 24-Epibrassinolide and Thiourea in Field Pea (Pisum sativum L.) under Drought Stress

2018 ◽  
Vol 34 (2) ◽  
pp. 229-235 ◽  
Author(s):  
Prachi Garg ◽  
◽  
A. Hemantaranjan ◽  
Jyostnarani Pradhan ◽  
◽  
...  
Keyword(s):  
Drought Stress ◽  
Pisum Sativum ◽  
Field Pea ◽  
Pisum Sativum L

DS Admiral field pea

2002 ◽  
Vol 82 (4) ◽  
pp. 751-752 ◽  
Author(s):  
L. Andersen ◽  
T. Warkentin ◽  
O. Philipp ◽  
A. Xue ◽  
A. Sloan
Keyword(s):  
Powdery Mildew ◽  
Pisum Sativum ◽  
Powdery Mildew Resistance ◽  
Field Pea ◽  
Western Canada ◽  
Mildew Resistance ◽  
Pisum Sativum L ◽  
Cultivar Description ◽  
Good Yielding ◽  
Growing Region

DS Admiral, a yellow cotyledon field pea (Pisum sativum L.) cultivar, was released in 2000 by Agriprogress Inc., Morden, Manitoba. DS Admiral has a semileafless leaf type, powdery mildew resistance, medium sized, round seeds, and good yielding ability. DS Admiral is adapted to the field-pea-growing region of western Canada. Key words: Field pea, Pisum sativum L., cultivar description, powdery mildew resistance

BELLEVUE FIELD PEA

1987 ◽  
Vol 67 (3) ◽  
pp. 805-806
Author(s):  
A. E. SLINKARD ◽  
R. A. A. MORRALL
Keyword(s):  
Pisum Sativum ◽  
Seed Weight ◽  
Field Pea ◽  
Pisum Sativum L ◽  
Cultivar Description

Bellevue field pea (Pisum sativum L.) was licensed in 1986. It is about 15% higher yielding than the check cultivars Century and Trapper. Bellevue has smooth seeds with yellow cotyledons. It has the le gene for shortened internodes and is about 6 d later maturing than Century and Trapper. Seed weight is about 179 g/1000 seeds, intermediate between Century and Trapper.Key words: Cultivar description, pea (field), Pisum sativum L.

Proximate and mineral composition of field peas

1997 ◽  
Vol 77 (1) ◽  
pp. 101-103 ◽  
Author(s):  
T. D. Warkentin ◽  
A. G. Sloan ◽  
S. T. Ali-Khan
Keyword(s):  
Pisum Sativum ◽  
Key Words ◽  
Mineral Composition ◽  
Seed Yield ◽  
Total Protein ◽  
Field Pea ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Pea Seeds ◽  
Proximate And Mineral Composition

Field pea seeds from 10 cultivars grown at two locations in Manitoba in 1986 and 1987 were analyzed for proximate and mineral profiles. Cultivars differed significantly in their level of total protein, crude fat, ADF, and all minerals tested. However, differences were not extremely large and were comparable to European reports. Location-year also had a significant effect on the levels of total protein, ADF, and all minerals tested. In most cases, the warmest location-year produced relatively higher levels of minerals, ash, and total protein, and lower seed yield than the coolest location-year. Key words: Field pea, Pisum sativum L., mineral

Sign in / Sign up

Export Citation Format

Share Document