scholarly journals Assessing diversity of insect pests of grain legumes using light traps

2020 ◽  
pp. 1
Author(s):  
Bishnu Neupane ◽  
Sunil Aryal ◽  
Jiban Shrestha
Keyword(s):  
Insect Pests ◽  
Grain Legumes ◽  
Light Traps

scholarly journals Elevated CO2 and Temperature Resetting the Expression of Resistance, Pest Incidence, Geographical Distribution and Physiology in Insect-pests of Grain Legumes: A Review

2021 ◽  
Author(s):  
B.L. Jat ◽  
P. Pagaria ◽  
A.S. Jat ◽  
H.D. Choudhary ◽  
T. Khan ◽  
...  
Keyword(s):  
Geographical Distribution ◽  
Elevated Co2 ◽  
Crop Production ◽  
Insect Pests ◽  
Abiotic Factors ◽  
Grain Legumes ◽  
Grain Legume ◽  
Nutritional Content ◽  
High Co2 ◽  
Elevated Co2 And Temperature

The most important factor that affects the crop production in terms of nutritional content of foliar plants is the global climate change. Herbivore’s growth, development, survival and geographical distribution all are determined by elevated CO2 and temperature. The interactions between herbivores and plants have changed due to increasing level of CO2 and temperature. The effect of high CO2 and temperature on grain legume plant which change in to plant physiology (e.g., nutritional content, foliage biomass) and how it change in herbivory metabolism rate and food consumption rate. Plant injury is determined by two factors viz. resistance and tolerance and both are influenced by greater CO2 and temperature. Legumes are an important source of food and feed in the form of proteins and also improve the soil environment. The repercussions of the abiotic factors mentioned above needs discussion among the scientific community. We may able to limit the negative repercussions of stated factors in future breeding projects by harnessing the practical favourable impacts and by including such influences of elevated CO2 and temperature on pulses productivity. The extensive research is necessary to overcome the negative effects of high CO2 and temperature on insect-plant interaction.

Effect of Chemical Spray on Insect Pests and Yield Quality of Food Grain Legumes

2008 ◽  
Vol 5 (3) ◽  
pp. 156-163 ◽  
Author(s):  
J.W. Muthomi ◽  
P.E. Otieno . ◽  
G.N. Chemining`wa . ◽  
J.H. Nderitu . ◽  
J.M. Wagacha .
Keyword(s):  
Insect Pests ◽  
Grain Legumes ◽  
Chemical Spray ◽  
Yield Quality ◽  
Quality Of Food ◽  
Food Grain

Insect Pests of Grain Legumes

1979 ◽  
Vol 24 (1) ◽  
pp. 255-278 ◽  
Author(s):  
S R Singh ◽  
H F V Emden
Keyword(s):  
Insect Pests ◽  
Grain Legumes

scholarly journals Are Yellow Sticky Cards and Light Traps Effective on Tea Green Leafhoppers and Their Predators in Chinese Tea Plantations?

Insects ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 14
Author(s):  
Longqing Shi ◽  
Haifang He ◽  
Guang Yang ◽  
Huoshui Huang ◽  
Liette Vasseur ◽  
...  
Keyword(s):  
Field Experiment ◽  
Open Field ◽  
Insect Pests ◽  
Light Emitting Diode ◽  
Control Measure ◽  
Trapping Efficiency ◽  
Light Traps ◽  
Green Leafhopper ◽  
Exclosure Experiment ◽  
Tea Plantations

In Chinese tea plantations, yellow sticky cards and light traps are increasingly used to control insect pests, especially the tea green leafhopper Empoasca onukii. In this study, a 16-week open-field experiment with daily weather monitoring was designed to test the responses of tea green leafhopper, parasitoids and spiders to yellow sticky cards and three light traps with different wavelengths (covered with sticky cards). An exclosure experiment was also designed to further test the influence of the three light systems (without sticky card) on the same species. The results showed that all three light emitting diode (LED) light traps (white, green and yellow) and yellow sticky cards attracted many more E. onukii male adults than females during the course of the open field experiment, with less than 25% of trapped adults being females. Parasitoids and spiders were also attracted by these systems. Weather variables, especially rainfall, influenced the trapping efficiency. In the exclosure experiment, the population of leafhoppers in the yellow sticky card treatment did not decline significantly, but the number of spiders significantly decreased. The green and white light treatments without sticky cards showed a significant control of E. onukii and no obvious harm to spiders. These results suggest that yellow sticky cards and light traps have limited capacity to control tea green leafhoppers. However, light, especially green light, may be a promising population control measure for tea green leafhoppers, not as killing agents in the traps, but rather as a behavioral control system.

scholarly journals Cultivation of Cowpea Challenges in West Africa for Food Security: Analysis of Factors Driving Yield Gap in Benin

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1139
Author(s):  
Firmin N. Anago ◽  
Emile C. Agbangba ◽  
Brice T. C. Oussou ◽  
Gustave D. Dagbenonbakin ◽  
Lucien G. Amadji
Keyword(s):  
West Africa ◽  
Management Practices ◽  
Insect Pests ◽  
Laboratory Data ◽  
Mineral Fertilizer ◽  
Grain Legumes ◽  
Future Research ◽  
Grain Yields ◽  
On Farm ◽  
Southern Benin

Feeding the world in 2050 requires us to find ways to boost yields of the main local crops. Among those crops, cowpea is one of the grain legumes that is playing an important role in the livelihood of millions of people in West Africa, especially in Benin. Unfortunately, cowpea on-farm yields are very low. In order to understand the main factors explaining cowpea yield gaps, we collected and analyzed detailed survey data from 298 cowpea fields in Benin during the 2017, 2018 and 2019′s rainy seasons, respectively. Composite soil samples were collected from cowpea fields and analyzed in the laboratory. Data on farm field management practices and field conditions were recorded through interviews with 606 farmers. Average cowpea grain yields were low and seldom surpassed 700 kg ha−1 on farmer’s fields. Significant differences were observed between cowpea grain yields from northern to southern Benin (p < 0.05), and the lowest yields were observed in northern Benin. These low yields are related to crop management practices, soil nutrient contents, and the interaction of both. According to the model of regression tree from northern to southern Benin, the use of mineral fertilizer, insecticide sprays to control pests, and the improvement of phosphorus, nitrogen, potassium (P, N, K) and cation sum content in the topsoil would increase cowpea grain yields. Insect pests, diseases, and soil fertility decline are the largest constraints limiting grain yield in Benin. Future research should focus on formulating site-specific fertilizer recommendations for effective cowpea cultivation in Benin, as well as the control of insect pests and diseases.

Sign in / Sign up

Export Citation Format

Share Document