scholarly journals Insect Pest Management of Vegetables in Pocket Areas of Modi Rural Municipality, Parbat

2021 ◽  
pp. 33-43
Author(s):  
Prem Raj Gautam ◽  
Som Sharma
Keyword(s):  
Pest Management ◽  
Host Plants ◽  
Management Practices ◽  
Insect Pests ◽  
Sampling Site ◽  
Similarity Index ◽  
Temperate Climate ◽  
Rural Municipality ◽  
Larval Host ◽  
Larval Host Plants

Modi Rural Municipality is one of the commercial vegetable pocket areas under temperate climate. A study was carried out during July 2021 in three vegetable growing areas: Tilahar, Deupur and Bajung of Modi Rural Municipality. A total number of nine quadrates (10×10) m2 were laid, including three replicating quadrates in each area with 500m differences from each quadrates in the sampling site. Overall, 18 farmers were interviewed to collect information about vegetables grown, insect pests that affected vegetables and their management practices. The total number of 24 insect pests were recorded belonging to five orders from 14 vegetable crops. Greater Sorensen's similarity index of insects was recorded in Tilahar and Deupur (ß=0.52) because there was similarity in environment, habitats, larval host plants and visiting plants of insects. Lower Sorensen's similarity index (ß=0.25) was recorded in Deupur and Bajung as there was less similarity in environment, habitats, larval host plants and visiting plants of insects. Insect pests and diseases on vegetables were the major problems in the study areas. The use of chemical insecticides was the means to control adopted by most of farmers while a few of them used other control methods. Insecticides on pests were applied considering fewer precautions. The study clearly indicated that the farmer’s knowledge towards Integrated Pest Management (IPM) was null and thus necessary action should be taken by concerned agencies to increase rate of vegetable production, avoid the heavy use of chemicals and allied consequences.

scholarly journals Local- and Landscape-Level Variables Related to Poweshiek Skipperling Presence in Michigan Prairie Fens

2019 ◽  
Vol 10 (2) ◽  
pp. 375-390 ◽  
Author(s):  
Clint D. Pogue ◽  
Michael J. Monfils ◽  
David L. Cuthrell ◽  
Rachel A. Hackett ◽  
Riley A. Zionce ◽  
...  
Keyword(s):  
Host Plants ◽  
Spatial Scales ◽  
Schizachyrium Scoparium ◽  
Suitable Habitat ◽  
Plant Biodiversity ◽  
Biologically Relevant ◽  
System Integrity ◽  
Larval Host ◽  
Weedy Species ◽  
Larval Host Plants

Abstract The Poweshiek skipperling Oarisma poweshiek, Lepidoptera: Hesperiidae is a historically common prairie butterfly with a range extending throughout prairie systems of the upper midwestern United States and southern Manitoba, Canada. Rapid, range-wide declines have reduced the number of verified Poweshiek skipperling locations to one in Manitoba prairie, one in Wisconsin prairie, and four in prairie fens in Michigan. Our objective was to investigate parameter suites with the potential to be biologically relevant to Poweshiek skipperling occupancy with the goal of informing conservation efforts. At 18 prairie fens categorized as occupied (n = 9) or unoccupied (n = 9), we collected information on plant biodiversity, water chemistry, soil chemistry, site geometry, and surrounding current and historical land cover at three spatial scales. To address the complexity of these systems, we used multiresponse permutation procedures and nonmetric multidimensional scaling to explore associations between variable groups thought to be relevant to Poweshiek skipperling (conditions for suspected larval host plants, system integrity, and agricultural influence) and occupancy categories. We used indicator species analysis to understand the relationships between plant biodiversity and Poweshiek skipperling occupancy at whole- and intrafen scales. Multiresponse permutation procedures analysis suggested that conditions for suspected larval host plants differed between occupied and unoccupied prairie fens. At the whole-fen scale, we identified 14 plant species associated with Poweshiek-occupied sites, including two purported larval host plants, Muhlenbergia richardsonis and Schizachyrium scoparium. At the intrafen scale, we identified 52 species associated with unoccupied Poweshiek sites, including many weedy species and those tolerant of inundated conditions. Our results can inform the evaluation of potentially suitable habitat for introduction and reintroduction efforts.

Larval Host Plants and Metamorphosis of Selected Butterfly Species (Rhopalocera) in La Union Botanical Garden (LUBG), San Fernando, La Union, Philippines

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
ALMA E. NACUA ◽  
ALMA B. MOHAGAN ◽  
GRECEBIO JONATHAN D. ALEJANDRO
Keyword(s):  
Host Plants ◽  
Botanical Garden ◽  
The Philippines ◽  
Life Cycles ◽  
Butterfly Species ◽  
Larval Host ◽  
Ocular Micrometer ◽  
San Fernando ◽  
Line Transects ◽  
Larval Host Plants

Host plants are known to support growth of different butterfly species in the larval stage.  Butterfly larvae are characterized by being voracious eaters and host plant specific. However, information regarding larval host plants of many butterfly species remains poor in the Philippines. The paper aimed to provide information on the larval host plants of the butterflies and document some butterfly life cycles in La Union Botanical Garden, San Fernando, La Union (LUBG), Philippines. The study employed visual searching for eggs and larvae in the foliage along the 100-meter line transects established in LUBG. Larval host plants were determined when larvae feed on the plant particularly leaves or flowers. The study on the life cycle or metamorphosis of selected butterfly species utilized field observation and description using ocular micrometer under the microscope. The data revealed 66 species in 27 families of larval host plants that support 57 species in 4 families of butterflies. The results suggest that presence and abundance of larval host plants affect butterfly metamorphosis and abundance in LUBG. Keywords - Butterfly, larval host plants, metamorphosis

The coevolution of Euphydryas chalcedona butterflies and their larval host plants

Oecologia ◽  
1983 ◽  
Vol 56 (2-3) ◽  
pp. 330-335 ◽  
Author(s):  
K. S. Williams ◽  
D. E. Lincoln ◽  
P. R. Ehrlich
Keyword(s):  
Host Plants ◽  
Larval Host ◽  
Larval Host Plants ◽  
Euphydryas Chalcedona

A new genus of pollen-beetle from South Africa (Coleoptera: Nitidulidae), with discussion of the generic classification of the subfamily Meligethinae

2008 ◽  
Vol 39 (4) ◽  
pp. 419-430 ◽  
Author(s):  
◽  
Alessio de Biase ◽  
Paulo Audisio ◽  
Andrew Cline ◽  
Marco Trizzino ◽  
...  
Keyword(s):  
South Africa ◽  
Host Plants ◽  
New Genus ◽  
Taxonomic Position ◽  
Related Genus ◽  
Pollen Beetle ◽  
Larval Host ◽  
Larval Host Plants

AbstractThe pollen-beetle Sebastiangethes anthystrixoides, n.gen., n.sp. from northern South Africa is described. The taxonomic position of Sebastiangethes, the related genus Anthystrix Kirejtshuk, 1981, as well as a relatively large assemblage of partially undescribed allied African taxa is discussed in the context of the Oriental genus Cyclogethes Kirejtshuk, 1979. An informal taxonomic assemblage named “Anthystrix-complex of genera” is here introduced. The previously unknown larval host-plants of African members of this “Anthystrix-complex of genera” are identified as dioecious trees belonging to Asteraceae within the tribe Tarchonantheae (genera Tarchonanthus and Brachylaena). Concepts of the generic and subgeneric classification of the subfamily Meligethinae also are discussed.

scholarly journals Climate Change, Carbon Dioxide, and Pest Biology, Managing the Future: Coffee as a Case Study

Agronomy ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 152 ◽  
Author(s):  
Lewis Ziska ◽  
Bethany Bradley ◽  
Rebekah Wallace ◽  
Charles Bargeron ◽  
Joseph LaForest ◽  
...  
Keyword(s):  
Climate Change ◽  
Early Detection ◽  
Pest Management ◽  
Plant Pathogens ◽  
Management Practices ◽  
Insect Pests ◽  
Geographic Ranges ◽  
Distribution Mapping ◽  
Projected Changes

The challenge of maintaining sufficient food, feed, fiber, and forests, for a projected end of century population of between 9–10 billion in the context of a climate averaging 2–4 °C warmer, is a global imperative. However, climate change is likely to alter the geographic ranges and impacts for a variety of insect pests, plant pathogens, and weeds, and the consequences for managed systems, particularly agriculture, remain uncertain. That uncertainty is related, in part, to whether pest management practices (e.g., biological, chemical, cultural, etc.) can adapt to climate/CO2 induced changes in pest biology to minimize potential loss. The ongoing and projected changes in CO2, environment, managed plant systems, and pest interactions, necessitates an assessment of current management practices and, if warranted, development of viable alternative strategies to counter damage from invasive alien species and evolving native pest populations. We provide an overview of the interactions regarding pest biology and climate/CO2; assess these interactions currently using coffee as a case study; identify the potential vulnerabilities regarding future pest impacts; and discuss possible adaptive strategies, including early detection and rapid response via EDDMapS (Early Detection & Distribution Mapping System), and integrated pest management (IPM), as adaptive means to improve monitoring pest movements and minimizing biotic losses while improving the efficacy of pest control.

scholarly journals Additions to the known larval host plants of Indian Lepidoptera

2011 ◽  
Vol 3 (12) ◽  
pp. 2272-2276
Author(s):  
Peter Smetacek ◽  
Rajni Smetacek
Keyword(s):  
Host Plants ◽  
Larval Host ◽  
Larval Host Plants

scholarly journals Barriers to IPM adoption for insect pests in New Zealand pastures

2019 ◽  
pp. 139-148 ◽  
Author(s):  
Sarah Mansfield ◽  
Colin M. Ferguson ◽  
Toni White ◽  
Scott Hardwick ◽  
Sean D.G. Marshall ◽  
...  
Keyword(s):  
New Zealand ◽  
Pest Management ◽  
Management Practices ◽  
Insect Pests ◽  
Control Strategies ◽  
Economic Losses ◽  
Control Methods ◽  
Current Management ◽  
Share Information

New Zealand’s pastoral sector faces significant challenges to pest management as long-standing insecticides are deregistered. To protect their pastures, farmers need to shift from reactive responses that lead to poor economic outcomes to pre-emptive responses that are viable in the long term. Current management practices (insecticides, endophytes, biological control) for New Zealand’s pasture insect pests were assessed from the perspective of Integrated Pest Management (IPM). Potential impacts from novel control strategies and emerging digital technologies were evaluated to determine how these could improve pest management. Cryptic IPM is present within the New Zealand pastoral sector: that is, farmers practise various elements of IPM but these elements are not integrated into a cohesive system, so farmers often fail to recognise pest impacts until significant economic losses have occurred. We identified important networks by which farmers, industry and researchers communicate and share information, and can develop strategies to raise awareness of IPM. To encourage adoption, farmers need to feel ownership of pasture IPM. Investment in IPM training for farmers through industry extension networks is essential to prepare farmers for the shift away from chemical insecticides to new biologically based control methods. Adoption of IPM will help pastoralists respond to current and new pest challenges.

Sign in / Sign up

Export Citation Format

Share Document