Sampling and preservation of rice insects

by Elvis A. Heinrichs

Publisher: West Africa Rice Development Association in Bouaké, Côte d"Ivoire

Written in English
Published: Downloads: 585
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Edition Notes

StatementElvis A. Heinrichs, Anthony Youdeowei, Joseph Kwarteng.
SeriesWARDA Training Guide -- 1
ContributionsYoudeowei, Anthony., Kwarteng, Joseph., West Africa Rice Development Association.
ID Numbers
Open LibraryOL18206147M
ISBN 109291130788

Just earlier this year, rice farmers across Regions 2 and 6 suffered losses from paddy bug infestation. The paper goes on to explain that while the contributing factor of this loss has been traced to paddy-bugs, there needs to be more focus on the monitoring of the effects of other pests such as leaf miner, water weevil and caterpillars. A company who specializes in the selling of grinding beads, homogenizers, lyophilization reagents, and sample preparation products. Paddy fields are natural and artificial wetland ecosystems that supply rice for the people and provide the wildlife especially insect diversity of different functional aspects. A total of 71 insect species belonging to 40 families under eight orders were observed during the study period. Among the 71 insect species, 18 species of beetles, nine species of bugs, eight species of dragonfly, five.   Insect pest of rice 1. INSECT PESTS OF RICE R. Regmi Assistant professor Department of entomology 2. INSECT PEST OF RICE • Rice (Oryza sativa L.) is the most important staple food crop of the world • More than 60 % of worlds population depend on it for food. • It is major crop of Nepal accounting 55% of total national cereal production.

IF YOU HAVE MOISTURE IN JARS AFTER SEALING, DO THIS: NOTHING!! The moisture will re-absorb in a few hours after cooling!UPDATE: Ma Our Little Home. This study investigated whether prior experience influences the plant food preference of Trigonotylus caelestialium and Stenotus rubrovittatus which cause pecky rice grain, by using rice plants and 2 poaceous weeds. In a choice experiment between Digitaria ciliaris and the rice plants, both T. caelestialium and S. rubrovittatus adults that were reared on D. ciliaris plants showed significant.   Rice bug sucks milk of the grains and for this reason rice grains remain unfilled. Nature Of damage: Nymphs and the adult bus feed on endosperm of the developing grains of rice. Growing nymphs are active feeders than adult insect but adult rice bugs do more damage than nymphs of this insects.   Read the Bugs in Rice-Is it still edible? discussion from the Chowhound General Discussion, Rice food community. Join the discussion today.

Non Technical Summary Insect pests contribute to revenue losses directly by either reducing rice yield and/or quality of the grain, or indirectly by reducing stand density and/or by delaying crop maturity. Thus, a knowledge of pest biology and strategies for management are an essential part of rice production. Field methods will be used to investigate the impact of insect pests on rice, the.   Various communities have used ducks and geese as a weed and pest control strategy. Indeed, there exist studies that have been conducted looking into the efficiency of the strategy in terms of yield, weed control and also pest control. Ducks and geese offer an organic method of controlling pests and weeds. Ducks have a high .   Store items at a low temperature and a low relative humidity Different storage conditions changed how these two photographs aged. The lower the temperature the longer your items will last, because cooler temperatures slow the rate of chemical decay and reduce insect activity. Keep the temperature below 75 degrees Fahrenheit (F). Keep the relative humidity (rH) below 65% to prevent . insect species conservation ecology biodiversity and conservation Posted By Edgar Rice Burroughs Media TEXT ID c Online PDF Ebook Epub Library insect conservation for the benefit of invertebrate conservation the journal places an emphasis on wild arthropods and specific relations between arthropod conservation.

Sampling and preservation of rice insects by Elvis A. Heinrichs Download PDF EPUB FB2

Book: Sampling and preservation of rice insects. pp pp. ref.3 Abstract: This training guide is intended to be useful for field assistants and research assistants training in crop pest sampling sampling Subject Category: Techniques, Methodologies and EquipmentCited by: 1.

This book on insect pest management in stored rice was written for students at the postgraduate level and includes, in addition to a review of published information, the results of research work carried out in India. The first part of the book contains a list of 17 species of insect pests of stored rice, and general information on storage losses, factors affecting infestability, sources and Cited by:   This book effectively utilizes the unique knowledge and expertise of leading rice entomologists from Africa, Asia and the Americas to provide the first global coverage of rice insect pests.

The discussion of each pest includes geographical distribution, plant hosts other than rice, description and biology, plant damage and ecology. Several Sampling and preservation of rice insects book methods were used to determine the number of rice stink bugs, Oebalus pugnax (F.) in rice, Oryza sativa L., fields and grassy margins.

Significantly more adult stink bugs were swept in fields of ‘Wells’ than ‘Francis’, ‘Cypress’, or ‘Bengal’. Sweep net sampling in the cooler parts of the day ( and hours CDT) captured significantly more rice stink bugs Cited by: In book: Biology and Management of Rice Insects (pp) Chapter: 7 Publisher: Wiley Eastern Limited, New Delhi, India; International Rice Research Institute, Los Baños, Philippines p.

This handbook outlines many of the techniques used by entomologists to collect and preserve invertebrates for further study. This fifth edition includes methods appropriate to preservation for DNA.

Store Rice in Sealed Plastic Bags One of the best ways to protect rice from insects is to store them in zipped or sealed plastic bags. If you have a large quantity of rice to be stored and prevented from insects you may not be able to store it in your freezer.

In such a case, put the rice in sealed plastic bags to keep insects at bay. The process of heating grain in the sun to kill insects is called solarization. It is an old age practice by farmers before storing the grains and pulses in regions where the outdoor temperature reaches 20 °C or higher (Chua and Chou, ).The solarisation time is varied based on the products, the dried grains are chewed to determine whether the grains are dried to satisfactory level.

Preservation of Specimens Pressing During vegetation sampling, collect repre-sentative specimens of all species that are important to meet your collec-tion needs (except for known rare and endangered specimens, which can free of insect damage, rust, or disease.

“Original Sample” are used interchangeably in the Grain Inspection Handbook. Both terms refer to a sample size of approximately 2, grams in size drawn from a lot by official inspection personnel using approved procedures and sampling devices. For more information on sampling, refer to Book I, “Sampling Procedures.” Review.

Samples were collected and estimated by sweeping, aspirators, picking up insects by hand, pitfall traps, sticky traps set up in the study site from rice fields of all life stages of insects, spider. Collecting supplies are somewhat dependent on the groups of insects being searched for and the time of day they are collected.

Supplies needed for day collecting can be quite different than those used for night collecting. The same idea applies to collecting terrestrial insects versus aquatic insects, or flying insects versus soil dwelling insects.

Survey on Rice Insects in Chitwan and Lamjung, Nepal Chiran Adhikari 1, Sampling technique used for rice insect pests (adopted from NICRA, ) identification and preservation.

At least 10 insect specimens of each species were preserved for future reference. Abiotic factors – physical, nutritional and host plant associated factors on insect population. Bioresources in ecosystems. Pests – definition, categories and causes for outbreak of pests. Losses caused by pests.

Pest monitoring – pest surveillance and forecasting – objectives, survey, sampling techniques and decision making. Some are designed to attract, collect, and preserve insects (1–3) while others only attract insects (4).

Traps 1–3 each use alcohol or soapy water to kill specimens. The sample is collected the next day, labeled and sorted.

Traps 1 and 3 are homemade and operate from a 12 volt battery. Rice insect pests and their management (Burleigh Dodds Series in Agricultural Science Book 50) - Kindle edition by Heinrichs, Prof.

A., Nwilene, Dr Francis E., Stout, Professor Michael J., Hadi, Dr Buyung A. R., Freitas, Dr Thais. Download it once and read it on your Kindle device, PC, phones or tablets.

Use features like bookmarks, note taking and highlighting while reading Rice insect. RICE CULTIVATION, PROCESSING, AND MARKETING IN THE EIGHTEENTH CENTURY Evidence of Cultivation Today Gresham and Hook () provide a overview of what rice fields look like today in South Carolina.

In they used black and white aerials with field sampling to delineate abandoned rice fields. They identified the size of. In total, the book contains maps, diagrams, and photos—most of them new to this edition.

Compendium of Rice Diseases and Pests, Second Edition, is broken into five major sections: • Introduction: An overview of rice production and consumption, taxonomy, plant development, and diseases and arthropod pests.

adequate preservation and proper labeling of specimens are essential to their identification. The methods used to collect insects and mites are dictated by the ultimate goal of the samples collected.

Insects may be collected as a hobby for personal enjoyment of their diversity and beauty. They may be collected in conjunction. Industrial alcohol is used for most arthropods. Insects, crustaceans and arachnids can be simply dropped into alcohol for immediately preservation. It is usually not needed to relax arthropods for liquid preservation.

Liquid hand sanitizer(for insects) Hand sanitizer is a gelled alcohol. BRRI Rice Varieties. Boro Rice Varieties; Aus Rice Varieties; Aman Rice Varieties; Rice Production & Management.

Production Methods; Disaster Management; Irrigation and Water Management; Soil and Fertilizer Management; Rice Insect and Pest Control Management; Rice Disease and Its Managment; Rice Seed Production and Preservation Methods; BRRI.

Entomologists on Twitter got all excited last week when a tutorial for preserving insects in hand sanitizer was passed around. As a teacher and an entomologist who does a lot of aquatic insect outreach activities, I was very excited to learn about this method. Aquatic insects are typically stored in glass vials filled with alcohol, which unfortunately means the insects all sink to the bottom.

Data for only the four types of insects above with the most abundance and which also had densities of >2 insects per g of maize in at least one sample collected are reported.

Sitophilus zeamais (total 1,), C. ferrugineus (total 1,), O. surinamensis (total 1,), and psocids (total 3,) were found during the study. Insect collecting refers to the collection of insects and other arthropods for scientific study or as a e most insects are small and the majority cannot be identified without the examination of minute morphological characters, entomologists often make and maintain insect collections.

Very large collections are conserved in natural history museums or universities where they are. Preservation and conservation of old documents requires specific knowledge. In some countries a carrier, in others an inherited professional discipline, it's a constant struggle against the pass of time to avoid erosions, weakness of materials and losses.

The most common species of rice bug are Leptocorisa oratorius F. and Leptocorisa acuta Thunberg. What it does. Rice bugs damage rice by sucking out the contents of developing grains from pre-flowering spikelets to soft dough stage, therefore causing unfilled or empty grains and discoloration.

Immature and adult rice bugs both feed on rice grains. Storage systems. Rice storage facilities take many forms depending on the quantity of grain to be stored, the purpose of storage, and the location of the store.

Storage systems can be through bag, bulk, or hermetic containers. Bag storage- g rain is stored in 40−80 kg bags made from either jute or woven plastic; Bulk storage - grain is stored in bulk at the farm or at commercial collection.

Concerned mainly with wildlife other than insects, but specifically devoting resources towards insect conservation Royal Society for the Protection of Birds Several local entomological societies, based in various British counties and cities, also have a strong interest in conservation.

Rice whitefly. Spider mite. Rice thrips. Rice leaffolder (Cnaphalocrocis medinalis Guenée) Rice leaffolder (Marasmia patnalis Bradley) Fijian rice leaffolder. Rice caseworm. Green horned caterpillar. Rice skipper (Parnara guttata Bremer and Grey) Rice skipper (Pelopidas mathias F.) Rice ear.

Several sampling techniques are to be used in the overall IRRI/ADB project. Yellow sticky trap Yellow sticky trap is designed to attract a variety of insects. The yellow color of the trap attracts the insects and the sticky coating captures them. Its dimension is cm x cm. Bookworm is a general name for any insect that is said to bore through books.

The damage to books that is commonly attributed to "bookworms" is, in truth, not caused by any species ofthe larvae of various types of insects including beetles, moths and cockroaches, which may bore or chew through books seeking food, are such larvae exhibit a superficial resemblance.Most of the insects found attacking stored rice are widely distributed geographically and found attacking many other commodities.

These insects have been distributed around the globe through human movement and commerce. In rice, insect damage during storage can be the result of contamination, grain consumption or heating.This book is divided into six sections: 1) pests that only attack the early crop, 2) general defoliators that attack all growth stages, 3) stem borers, 4) plant suckers, 5) grain suckers, and 6) soil pests.

This identification guide to rice insect pests is a companion to.