Phytochemical activity and role of botanical pesticides in pest management for sustainable agricultural crop production

For increased crop production, the role of chemical termiticides cannot be neglected as they have provided the efficient way to achieve green revolution. But the present scenario has forced mankind to search for alternative options. While keeping in mind the concept of sustainable agriculture, pest management including termites and other phyto-diseases etc. needs to be focused. For the achievement of the above stated goal, eco-friendly and cost-effective strategies need to be emphasized. Biopesticidal agents that mainly comprise of herbal and microbial formulations are known to exhibit anti termite activity and have a pivotal role in the production of organic food products. In order to reduce the chemical consumption, the vast area of biological alternatives needs to be explored as they provide us with many beneficial aspects like sustainability, suitable application, biodegradable nature, target specificity etc. Further, the bioactive components of such biological agents can later be used as commercially viable termiticides in the form of formulations. These herbal and microbial termiticides are effective and have immense scope to be used in future for sustainable development.

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Use of Insecticides in Nepal, Its Impact and Alternatives of Insecticides for Nepalese Farmers

10.5772/intechopen.101091 ◽

2021 ◽

Author(s):

Sushil Nyaupane

Keyword(s):

Gross Domestic Product ◽

Pest Management ◽

Crop Production ◽

Positive Impact ◽

Agricultural Crop ◽

Farmer Knowledge ◽

Plant Resources ◽

Alternative Measures ◽

The Government ◽

And Behavior

Nepal is an agrarian country whose population is primarily dependent on agriculture but the contribution to national Gross Domestic Product (GDP) is low as expected. There are many constraints to agricultural crop production and the farmers are facing those problems in their day-to-day lives. Deployment of insecticides and others to mitigate various insects and pests is one of them. Although abundant with locally available plant resources for pest management, farmers, especially in commercial pocket areas, are primarily dependent on conventional pesticides and those chemicals have detrimental effects on human health, including various flora, fauna, and environment. Although the Nepal government has formulated an act and worked on that basis, there is plenty of room to work on. Since farmer knowledge and behavior have a positive impact on reducing the use of conventional insecticides and work on alternative measures for pest management, these sorts of programs should be prioritized by the Government of Nepal and its allied agricultural organizations.

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Review: Role of Syrphids (Diptera: Syrphidae) as Biotic Agents and Pollinators in Pakis

Journal of Bioresource Management ◽

10.35691/jbm.4102.0007 ◽

2014 ◽

Vol 1 (2) ◽

Cited By ~ 2

Author(s):

Mohammad Irshad

Keyword(s):

Biological Control ◽

Quality Improvement ◽

Pest Management ◽

Natural Enemies ◽

Crop Production ◽

Production Quality ◽

Limiting Factors ◽

Agriculture Sector ◽

Pest Damage

The agriculture sector is important in the overall economy of Pakistan. There are many limiting factors in crop production. The two important factors are pest damage and pollination in addition to many others. Pest damage remained a serious problem since the dawn of human civilization. With the advancement of knowledge regarding safety of environment, pests are now tackled through Integrated Pest Management (IPM) techniques. In IPM, biological control through use of natural enemies is quite significant and the favored approach. Pollination is an essential ecosystem service. Effective pollination results in increased crop production, quality improvement and more seed production. One of the important groups of pollinators is Syrphid. About 84 species are reported from Pakistan. However, they have not been practically and effectively applied in both IPM and pollination contexts.

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Application of Remote Sensing in Agriculture

Geoinformatica Polonica ◽

10.2478/gein-2014-0007 ◽

2014 ◽

Vol 13 (1) ◽

Cited By ~ 3

Author(s):

Jan Piekarczyk

Keyword(s):

Remote Sensing ◽

Precision Agriculture ◽

Crop Production ◽

Satellite Images ◽

Crop Yields ◽

Spatial Scales ◽

Strong Relationship ◽

Physical Parameters ◽

Agricultural Crop ◽

Remote Sensing Methods

AbstractWith increasing intensity of agricultural crop production increases the need to obtain information about environmental conditions in which this production takes place. Remote sensing methods, including satellite images, airborne photographs and ground-based spectral measurements can greatly simplify the monitoring of crop development and decision-making to optimize inputs on agricultural production and reduce its harmful effects on the environment. One of the earliest uses of remote sensing in agriculture is crop identification and their acreage estimation. Satellite data acquired for this purpose are necessary to ensure food security and the proper functioning of agricultural markets at national and global scales. Due to strong relationship between plant bio-physical parameters and the amount of electromagnetic radiation reflected (in certain ranges of the spectrum) from plants and then registered by sensors it is possible to predict crop yields. Other applications of remote sensing are intensively developed in the framework of so-called precision agriculture, in small spatial scales including individual fields. Data from ground-based measurements as well as from airborne or satellite images are used to develop yield and soil maps which can be used to determine the doses of irrigation and fertilization and to take decisions on the use of pesticides.

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Evaluating the impacts of major cyclonic catastrophes in coastal Bangladesh using geospatial techniques

SN Applied Sciences ◽

10.1007/s42452-021-04700-7 ◽

2021 ◽

Vol 3 (8) ◽

Author(s):

Mashoukur Rahaman ◽

Md. Esraz-Ul-Zannat

Keyword(s):

Deep Water ◽

Water Body ◽

Crop Production ◽

Vector Analysis ◽

Agricultural Crop ◽

Geospatial Technologies ◽

Catastrophic Events ◽

Change Vector Analysis ◽

Change Vector ◽

Post Disaster

AbstractCyclonic catastrophes frequently devastate coastal regions of Bangladesh that host around 35 million people which represents two-thirds of the total population. They have caused many problems like agricultural crop loss, forest degradation, damage to built-up areas, river and shoreline changes that are linked to people’s livelihood and ecological biodiversity. There is an absence of a comprehensive assessment of the major cyclonic disasters of Bangladesh that integrates geospatial technologies in a single study. This study aims to integrate geospatial technologies with major disasters and compares them, which has not been tried before. This paper tried to identify impacts that occurred in the coastal region by major catastrophic events at a vast level using different geospatial technologies. It focuses to identify the impacts of major catastrophic events on livelihood and food production as well as compare the impacts and intensity of different disasters. Furthermore, it compared the losses among several districts and for that previous and post-satellite images of disasters that occurred in 1988, 1991, 2007, 2009, 2019 were used. Classification technique like machine learning algorithm was done in pre- to post-disaster images. For quantifying change in the indication of different factors, indices including NDVI, NDWI, NDBI were developed. “Change vector analysis” equation was performed in bands of the images of pre- and post-disaster to identify the magnitude of change. Also, crop production variance was analyzed to detect impacts on crop production. Furthermore, the changes in shallow to deep water were analyzed. There is a notable change in shallow to deep water bodies after each disaster in Satkhira and Bhola district but subtle changes in Khulna and Bagerhat districts. Change vector analysis revealed greater intensity in Bhola in 1988 and Satkhira in 1991. Furthermore, over the years 2007 and 2009 it showed medium and deep intense areas all over the region. A sharp decrease in Aus rice production is witnessed in Barishal in 2007 when cyclone “Sidr” was stricken. The declination of potato production is seen in Khulna district after the 1988 cyclone. A huge change in the land-use classes from classified images like water body, Pasture land in 1988 and water body, forest in 1991 is marked out. Besides, a clear variation in the settlement was observed from the classified images. This study explores the necessity of using more geospatial technologies in disastrous impacts assessment around the world in the context of Bangladesh and, also, emphasizes taking effective, proper and sustainable disaster management and mitigation measures to counter future disastrous impacts.

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Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

Minerals ◽

10.3390/min11040373 ◽

2021 ◽

Vol 11 (4) ◽

pp. 373

Author(s):

Jonathan Suazo-Hernández ◽

Erwin Klumpp ◽

Nicolás Arancibia-Miranda ◽

Patricia Poblete-Grant ◽

Alejandra Jara ◽

...

Keyword(s):

Organic Matter ◽

Crop Production ◽

Agricultural Soils ◽

Ph Value ◽

Consumer Products ◽

Soil Samples ◽

Engineered Nanoparticles ◽

P Availability ◽

Agricultural Crop ◽

Phosphorus Sorption

Engineered nanoparticles (ENPs) present in consumer products are being released into the agricultural systems. There is little information about the direct effect of ENPs on phosphorus (P) availability, which is an essential nutrient for crop growthnaturally occurring in agricultural soils. The present study examined the effect of 1, 3, and 5% doses of Cu0 or Ag0 ENPs stabilized with L-ascorbic acid (suspension pH 2–3) on P ad- and desorption in an agricultural Andisol with total organic matter (T-OM) and with partial removal of organic matter (R-OM) by performing batch experiments. Our results showed that the adsorption kinetics data of H2PO4− on T-OM and R-OM soil samples with and without ENPs were adequately described by the pseudo-second-order (PSO) and Elovich models. The adsorption isotherm data of H2PO4− from T-OM and R-OM soil samples following ENPs addition were better fitted by the Langmuir model than the Freundlich model. When the Cu0 or Ag0 ENPs doses were increased, the pH value decreased and H2PO4− adsorption increased on T-OM and R-OM. The H2PO4− desorption (%) was lower with Cu0 ENPs than Ag0 ENPs. Overall, the incorporation of ENPs into Andisols generated an increase in P retention, which may affect agricultural crop production.

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