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Current approaches to the control of house mouse infestations rely heavily on a reactive service, where treatments are undertaken in response to complaints. The impact of buildings on the distribution and persistence of house mouse infestations has received little attention. This paper reports the results of 117 surveys of domestic properties in an urban area of Manchester. Results found that mice were not uniformly distributed within the domestic properties surveyed and that general characteristics and construction of the property, food hygiene within the kitchen area and overall fitness influenced distribution. The paper highlights the need for an integrated approach to control to ensure long‐term eradication of chronic house mouse infestations.

The paper aims to examine fall armyworm's (FAW) effect on Ghana's farming households' income and food security status.

A sample of 225 farmers, including FAW-infested households and non-FAW-infested households, were interviewed. Gross margin (GM) analysis was used to estimate farmers' farm revenues, and the Household Food Insecurity Access Scores (HFIAS) was employed to measure the food security status of the households. The seemingly unrelated regression (SUR) was adopted to investigate the effect of FAW infestation on gross income and food security.

From the study, FAW attack is predominant during the vegetative stage of the maize plant. The empirical results revealed that FAW-infested farms incur loss, whereas non-FAW-infested farmers gained profit. Also, FAW-infested households were mildly food insecure, while non-FAW-infested households were food secured. The results of SUR analysis reveal that FAW infestation decreased farmers' income from maize production and rendered them food insecure.

One limitation of this study is that it largely depended on a survey; however, future studies can combine both survey and experimental data from the farmers' fields during minor and major growing seasons of maize.

Given the negative consequences of FAW, studies have been conducted across Africa and globally. However, most of these studies concentrated on using geographic information system (GIS) and descriptive statistics without necessarily quantifying the effect of FAW on food security and the profit margins of farming households. Therefore, this study adds to the little literature on the effect of FAW on food security and GM from maize production, which has received less attention in Ghana to the authors' best knowledge.

Offers advice to surveyors and property managers as to how to deal with an infestation of rats in buildings. Considers the scale of and changes in the rat population, and discusses their habits and needs, the implication of which are highlighted by a case study on the Hulme Estate in Manchester. Describes the various types of damage that can be caused, and shows how evidence of an infestation can be detected. Explores alternative remedies to the problem and suggests clauses for a report. Declares that infestations are the consequence of either poor building design or poor property management.

Considerable progress has been made in connection with the scientific survey now being undertaken as a preliminary to the consideration of improved methods of treatment and prevention of the ever increasing menace of grain pests, of which there are some seventy varieties. The survey is being made by the Stored Products Laboratory, of the Imperial College of Science and Technology, under the direction of the Department of Scientific and Industrial Research, and is being conducted by Professor Munro, assisted by a staff of experienced entomologists. At the commencement of the survey a research committee was appointed under the chairmanship of Dr. E. J. Butler, C.M.G., C.I.E., the Secretary of the Agricultural Research Council, to supervise the survey, consider its results, and report to the Department. Membership of the Research Committee includes, in addition to representation from Government Departments, Mr. W. P. Henderson, the Chief Chemist of the L.M.S. Railway, and Mr. W. McAuley Gracie, M.B.E., M.Inst.T., Chairman of the Standing Conference on Pest Infestation set up by the Department of Scientific and Industrial Research. At a recent meeting of the Research Committee, Professor Munro submitted a progress report dealing with the scientific survey, and on the convincing evidence contained in the report the Department of Scientific and Industrial Research sought the opinion of the Standing Conference on Pest Infestation as to whether consideration of control and remedial measures should be undertaken forthwith. The Standing Conference, whose membership comprises representatives of Government Departments, trading authorities and associations, including the Ministry of Agriculture, the four main line railway companies, the Port of London Authority, the Association of Master Lightermen and Barge Owners, the Research Association of British Flour Millers, the National Federation of Corn Trade Associations, the National Association of Corn and Agricultural Merchants, the National Farmers' Union, the Brewers' Society and the Maltsters' Association, took unanimous resolutions desiring the Department to secure immediate consideration of control and remedial action appropriate to the varying circumstances, and to extend the constitution of the Conference to bring into contributing membership interests outside the grain trade, but who are concerned with other produce susceptible to pest infestation, inasmuch as they would derive benefit from this stage of the work. The Chairman was authorised to negotiate with the Department accordingly and standing orders were suspended to enable him to admit into membership such bodies as furnished the requisite proof of interest. The Conference also urged that the Department of Scientific and Industrial Research should consult immediately with other appropriate public departments to secure adequate arrangements being made for the complete treatment of the problems of prevention and cure. The cost of such treatment, however, has to be met largely by industrial contributions, but it is understood that there is indication that generous contribution may be made from public funds towards the cost of the immediate remedial stage, providing that substantial industrial financial backing is forthcoming. Promises of further financial support have already been secured, but more money is required before negotiation can be entered into with the Department to obtain help from public funds. The co‐operation of all industrial organisations faced with the problem of infestation, by taking up contributory membership to support the conference in its national work, is urgently required. The problems of infestation can only be successfully combated if the complete co‐operation of all sections of industry in any way affected is secured. Full details and information regarding membership of the Conference can readily be obtained on application to the Chairman of the Standing Conference on Pest Infestation at the Department of Scientific and Industrial Research, 16, Old Queen Street, London, S.W.1.

Many factors affect the emergence and development of crop diseases and insect pests. Traditional methods for investigating this subject are often difficult to employ and produce limited data with considerable uncertainty. The purpose of this paper is to predict the annual degree of cotton spider mite infestations by employing grey theory.

The authors established a GM(1,1) model to forecast mite infestation degree based on the analysis of historical data. To improve the prediction accuracy, the authors modified the grey model using Markov chain and BP neural network analyses. The prediction accuracy of the GM(1,1), Grey-Markov chain, and Grey-BP neural network models was 84.31, 94.76, and 96.84 per cent, respectively.

Compared with the single grey forecast model, both the Grey-Markov chain model and the Grey-BP neural network model had higher forecast accuracy, and the accuracy of the latter was highest. The improved grey model can be used to predict the degree of cotton spider mite infestations with high accuracy and overcomes the shortcomings of traditional forecasting methods.

The two new models were used to estimate mite infestation degree in 2015 and 2016. The Grey-Markov chain model yielded respective values of 1.27 and 1.15, whereas the Grey-BP neural network model yielded values 1.4 and 1.68; the actual values were 1.5 and 1.8.

The improved grey model can be used for medium- and long-term predictions of the occurrence of cotton spider mites and overcomes problems caused by data singularity and fluctuation. This research method can provide a reference for the prediction of similar diseases.

When reports that better clothing stores and hotels in the USA found themselves in the embarrassing position of acknowledging that they had indeed been infested with bedbugs, other organizations and institutions, including some libraries, have been on the alert ever since for similar evidence of such infestations. The purpose of this column is to discuss the recent reports of the re‐appearance of bedbugs and the impact they have had on some libraries.

The paper's approach is a literature review and commentary on this topic.

From the library perspective, any sign of bedbugs must be attended to immediately so that the infestation does not spread further. There are two proven and effective measures that can be undertaken by a library to address this issue – exposing the books to extreme heat or extreme cold – but placing the staff at risk should always be a consideration when attempting a self‐eradication in a library as well. Therefore, engaging a professional exterminator at the first visible sign of bedbug infestation should always be seen as a potential solution.

The value in addressing this issue is to create an awareness that the re‐appearance of bedbugs in some libraries is very real as indicated by the reporting of this issue in the media.

In a Northern city, which claims to have more than 12,000 Commonwealth immigrants, mostly of Asian origin—Pakistanis and Indians, an increasing number of whom have been joined by their wives and families, there was instituted in 1965 a routine examination of their children before school entry, later extended to children of immigrant origin already in the schools. This examination extended to haemoglobin estimation, tuberculin‐testing and, equally important, examination of the stools for pathogens and parasitic ova. 419 entrants were examined in the first half of 1965 and 898 pupils. Parental co‐operation must have been excellent, as parents all agreed, without exception, to the special examination, although to some extent, there might have been considered legal authority in the current School Health Service (Medical Inspection) Regulations made under the Education Act, 1944. We are not aware of any report of intestinal pathogens, but helminth infestations were reported (Archer D. M., Bamford F. N., and Lees E., Helminth Infestations in Immigrant Children, 1965, Brit. Med. J., 2, 1517), from which it appears 18·6% carried five types of worm, of which the commonest was hookworm. It would be fair to assume that helminth infestation, indicating as it does, exposure to food infections, water‐borne disease and environment generally, is an index of gastro‐intestinal infection and the presence of pathogens, including the carrier state.

The purpose of this paper is to provide greater insights into the-state-of-the-art in crisis management and aid in better response to health-related crises, with a specific focus on the hotel industry. This study extends the tourism crisis management model to include social media, concerning the role of monitoring and responding.

This study enhances the classic 4R (readiness, reduction, response and recovery) crisis management model to include social media for hotels facing a bed bug crisis and/or other health-related crises.

This paper discusses the use of social media at different phases of managing a bed bug crisis, which include risk reduction, readiness, response and recovery. Recommendations are also provided for hotel managers to combat health-related crises that are fought out on social media.

Social media has helped to bridge the communication gap between customers and hotels. Bed bug infestations are a growing health crisis, and they have obtained increasing attention on social media sites. Without managing this crisis effectively, bed bug infestation can cause economic loss and reputational damages to hotel properties, ranging from negative comments and complaints, to possible lawsuits. Thus, it is essential for hoteliers to understand the importance of social media in crisis communication, and to incorporate social media in hotels’ crisis management plans.

This study serves as one of the first attempts in the hospitality field to offer discussions and recommendations on how hotels can manage the bed bug crisis and other crises of this kind by incorporating social media into their crisis management practices.

In the last 25 years, we have seen a considerable increase in the use of new and unconventional methods for the remedial treatment of building defects. Some of the materials and techniques used have been employed long enough for an assessment to be made of their efficacy based on field experience. Some have only been evaluated by accelerated laboratory methods and do not yet have the full support of service records. Other products are declining in importance as a result of a ‘lack of approval’ by the independent bodies that pronounce on these matters.

It is estimated that in this country alone no less than 2,000,000 tons of food annually is destroyed by reason of the depredations of rats and mice. Neither powers nor organisations existed at the outbreak of war. which were adequate for the purpose of preventing wastage, which, under war conditions, became intolerable. That there was on the Statute Book the Rats and Mice (Destruction) Act, 1919, cannot be denied, but no authority existed for the control of destructive insects and mites in foodstuffs. The powers and duties vested in local authorities under the Rats and Mice (Destruction) Act were of little avail and it was allowed to fall into disuse without alternative provision being made. The control of these several groups of pests has for some years past been dependent on the powers derived from the Defence Regulations and continued under the Supplies and Services (Transitional Powers) Act. The profession of the rat catcher is an old and universal one. In 17th century Italy the “ professional ” was recognised by his long pole bearing a square flag on which were representations of cats and mice; the Chinese equivalent bore a sign depicting a cat in a bag. An accepted method of destruction quoted in The Book of Days is one attributed to the Irish, who believed that they could rhyme any beast to death, and in particular the rat. Another prevalent notion was that rats had a presentiment of coming evil and always deserted in time a ship about to be wrecked, or a house about to be flooded or burned. In 1854 it was seriously reported in a Scottish provincial newspaper that the night before a town mill was destroyed by fire the rats belonging to the establishment were met migrating in a body to a neighbouring field. A more scientific approach is now being made to the problem. In August, 1947, a meeting was held in London to discuss the world‐wide problem of losses as a result of damage by insects, fungi and rodents, and to consider the steps to be taken to reduce such losses. Embracing a general consideration of the problem of infestation control, the meeting, convened by Dr. L. E. Kirk, head of the Plant Industry Research Branch, Agriculture Division, F.A.O., covered many phases of the subject, ranging from the economics of the problem to the toxicity of new synthetic insecticides. Accepting the principle that efficient prevention and control of food infestation was essential to the conservation of the world's food supply, the meeting recommended that:—