1N. Johnson Singh, 2Amitava Konar and 3Palash Mondal

Incidence of aphids in different traps on potato in Gangetic plains of West Bengal
...the end of February. The abiotic factors viz., temperature (maximum & minimum), relative humidity% (maximum & minimum) and bright sunshine hour had significant effect on aphid population. The same abiotic factors were quite different between the first and second year. This was due to the fact that the climatic conditions in second year varied distinctly from the first year.

...

1S. A. Khan and 2S. Jha

Effect of dates of sowing, moisture regimes, varieties and weather factors on incidences of aphid, Lipaphis erysimi (Kalt.) in rape and mustard
...fluenced by predisposing abiotic factors, has been widely reported as the most noxious insect pest limiting production of rape and mustard. Field experiment was carried out with 3 varieties of rape and mustard, 6 dates of sowing and 2 moisture regimes to understand aphid population dynamics during different phases of growth of rainfed vis-à-vis irrigated rape and mustard crops, and work out relationships between aphid population and weather parameters f...

S. Choudhury and S. Pal

Population dynamics of mustard aphid on different Brassica cultivars under terai agro-ecological conditions of West Bengal
...population and different abiotic factors revealed contradictory results. Except for a few instances the weather parameters showed low order of associations with aphid population. Thus, the ecological factors exhibited little impact on the population build up of mustard aphid. The degree of infestation and the rates of population change of the aphids on different Brassica cultivars seem to be governed by varietal characteristics of different germplasms. Brassic...
Erol Akkuzu1,*, Hidayet Güzel2 and Özkan Evcin1
...ify;">Various biotic and abiotic factors influence the population dynamics and severity of damage in a forest. This study investigated the effects of stand composition and site index of pine forests on Ips sexdentatus (Boerner) populations. Two main objectives of this study were a) to compare the effects of two different black pine stands of site index-I (high site productivity) and site index-III (low site productivity) and b) to compare the pure and m...
Farhan Ahmad1,*, Muhammad Waris Sanjrani1, Shah Nawaz Khuhro1, Asif Sajjad2, Abid Ali3, Rashad Rasool Khan3, Farooq Ahmed3 and Junhe Liu4,*
...asitism.
...

Muhammad Haroon Hullio1,4, Abdul Ghani Lanjar2, Abdul Rahman Dhuyo3, Imran Khattri4 and Agha Mushtaque Ahmed4* 

... booting) with effect of abiotic factors (temperature and relative humidity). In last, the varietal screening of 30 local rice varieties in term of pest population was observed. The data were collected for two rice growing seasons 2012 to 2013. In results, the maximum mean population of 15.25 WBPH/25 hills at 38 0C with 50% relative humidity was observed in district Badin in the first week of August, 2012. The correlation results regarding mean population of W...

Muneer Abbas1*, Muhammad Ramzan1, Niaz Hussain1, Abdul Ghaffar1, Khalid Hussain1, Sohail Abbas2 and Ali Raza3 

...ections in relation with abiotic factors based on marginal cost benefit ratio. Results indicated that total 32415 insect’s captures were made with >26 insect species including 4 species of bio control agents. Helicoverpa armigera, Spodoptera litura, Agrotis Sp., Bemesia tabaci and Microtermes Spp. were major pests of gram and mungbean attracted in light traps. May, June and July were hottest months of the year with highest population captures of 2892,...
Wenyou Huang1, Dan Yü1, Song Huang1,2, Jian Xiao2, Ping Qi2, Anhua Song2* and Zhen Huang1*
...red by negatively active abiotic factors including high temperature, desiccation and UV irradiation. Selecting isolates with high UV tolerance and virulence is important in improving the efficacy and utility of fungal insect pathogens as insect biological control agents for use under field conditions. UV-irradiation of Metarhizium lepidiotae, coupled to growth selection, second metabolites change and insect bioassays using Plutella xylostella lar...
Ijaz Haider1*, Muhammad Akhtar1, Ali Noman2 and Muhammad Qasim3
...trap. The effect of some abiotic factors like temperature, relative humidity and rainfall on the adult population of these pests was also studied. The population of these pests was monitored on the light trap from March to November from 2000 to 2014 in rice wheat cropping system. Yellow stem borer (YB), white stem borer (WB) and pink stem borer (PB) first appeared on the light trap in March when average temperature was 18°C. YB and WB had first peak popula...

Muhammad Zubair Ishaq1, Umar Farooq1, Muhammad Asim Bhutta2*, Saghir Ahmad2, Amna Bibi2, Hafeez UR Rehman3, Umar Farooq3, Javaria Ashraf4 and Samaria Nisar4

...imate change, biotic and abiotic factors, unpredictable rain patterns, high temperatures. Therefore, it needs to identify cultivars with suitable sowing time in a specific environment. The objective of this experiment was to evaluate the yield potential of different cotton genotypes under different sowing dates (early to late). In 2019 and 2020, a field experiment was conducted at Cotton Research Station, Sahiwal, Pakistan. The experiment was conducted using a...
Ayu Suci Wulandari1, Siwi Indarti1,2*, Muhannad Illayan Massadeh3 and Nguyen Van Minh4
...ers were collected. Soil abiotic factors are taken measurements such as pH, temperature, and organic matter. The altitudes are measured using the Geograpichal Positioning System (GPS). The results showed that there were five parasitic nematodes genera in garlic, that are Ditylenchus sp., Helicotylenchus sp., Hoplolaimus sp., Rotylenchulus sp., and Pratylenchus sp. Abiotic factors as tempera...

Aiman Amur1*, Nasreen Memon1, Pervaiz Khan2 and Fozia Gull3

...ly. This relationship of abiotic factors clearly shows that pest emergence increase with peak season of host and ecology of field. This research work indicated about pest alarming occurrence time, correlation of environmental factors and suggesting future pest management strategies for controlling Pest.
...

Judith Kiptoo1*, Daniel Mutisya2, Paul Ndegwa1, Ruth Amata3, Lucy Irungu4 and Rotich Godfrey5

...e would be influenced by abiotic factors therein.

...

Khalid Hussain1, Muneer Abbas1*, Niaz Hussain1, Muhammad Irshad1, Mudassar Khaliq1, Zubeda Parveen1, Sohail Abbas2, Ali Raza3 and Abdul Ghaffar1

... of trap, as well as the abiotic factors affecting them. To achieve ideal trap efficacy their height should be adjusted according to the crop growth stage. It is very important to keep traps just above the crop canopy. Traps at 0.5, 1.0 and 1.5 meter heights were more effective at seedling, tillering and dough stages, respectively. The population in the traps was correlated with the average temperature (⁰С) and humidity (%). Temperature had positive and sig...

Khalid Hussain1, Muneer Abbas1*, Niaz Hussain1, Muhammad Irshad1, Mudassar Khaliq1, Zubeda Parveen1, Sohail Abbas2, Ali Raza3 and Abdul Ghaffar1

... of trap, as well as the abiotic factors affecting them. To achieve ideal trap efficacy their height should be adjusted according to the crop growth stage. It is very important to keep traps just above the crop canopy. Traps at 0.5, 1.0 and 1.5 meter heights were more effective at seedling, tillering and dough stages, respectively. The population in the traps was correlated with the average temperature (⁰С) and humidity (%). Temperature had positive and sig...

Mutala’liah, S. Indarti † and N. S. Putra

...
influenced by soil abiotic factors and coffee plant varieties in three fields. The research was conducted in
Malangsari, Getas and Candiroto feilds. Samples of soil and roots were collected and various parameters of soil
abiotic factors (pH, soil moisture, soil temperature, soil texture and organic matter) were obtained from each of the
three fields. Vertical distribution was assesse...

Pakistan Journal of Nematology

December

Pakistan Journal of Nematology, Vol. 32, Iss. 2, Pages 123-240

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