26 Quarantine Scott W. Myers David W. Hagstrum The term quarantine originated from the Italian in 1997 as part of Food and Agriculture Organiza- word quarantina (meaning 40 days) when the Black tion (FAO) efforts to help standardize the phytosan- Death arrived in Europe in 1347 (Ebbels 2003). The itary certification by different countries (Anon. 2001, incubation period from infection to symptoms was Tyler and Hodges 2002). A model phytosanitary nearly 40 days, so 40 days was the quarantine period certificate was developed by FAO (Figure 1). for ships suspected of carrying infection. Today, quarantine insects are those of economic importance The World Trade Organization (WTO) enforces that may or may not be present in an importing Agreement on Application of Sanitary and Phytos- country but are not widely distributed in that coun- anitary Measures, also known as the SPS Agreement, try. The terms plant quarantine or plant health in which establishes food safety and animal and plant Europe and plant protection in North America cover health standards for international trade. Although legislation and regulation designed to minimize SPS allows individual countries to establish their the introduction and spread of harmful organisms own phytosanitary requirements, it encourages the using inspection, survey, risk assessment, treatment, use of international standards and a science-based post-entry quarantine, containment campaigns, and approach to develop treatment regulations. eradication. Within Africa, national legislation and regulations are based on Inter-African Plant Phytosanitary and International Programs Quarantine Regulations of 1988. Regional enforce- ment is coordinated by the following groups: Inter- Worldwide invasive species cost billions of dollars African Phytosanitary Council (IAPSC), Asia and annually in loss of commodities, reduced agricultural Pacific Plant Protection Commission (APPPC), productivity and control measures. All countries have Caribbean Plant Protection Commission (CPPC), a vested interest in preventing the introduction and Comunidad Andina (CA), Comité Regional de spread of invasive insect species. Legislative con- Sanidad Vegetal del Cono Sur (COSAVE), Euro- trol can be effective in regulating the introduction pean and Mediterranean Plant Protection Organi- and establishment of alien insect pests in a coun- zation (OEPP), North American Plant Protection try and limiting their spread within that country. Organization (NAPPO), Organismo Internacional Most countries have some legislation restricting Regional de Sanidad Agropecuaria (OIRSA), and the importation of infested commodities. Informa- Pacific Plant Protection Organization (PPPO). tion on international legislation is available at the International Plant Protection Convention website Two hundred and thirteen contracting parties and (https://www.ippc.int/). their territories have National Plant Protection Organizations (IPPC 2010). The International Plant Internationally, the International Plant Protection Protection Convention (IPPC) requires contract- Convention (IPPC) was written in 1951 and revised Stored Product Protection 1 Part IV | Management: Decision Making ing parties to establish, update, and make available reduce the risk of accidentally introducing pest spe- lists of regulated pests (Anon. 2003). In the United cies. Preclearance programs can be beneficial to both States these lists are available through the PExD trading partners as they allow commodities to move database maintained by United States Department to market without interruption; however, they are of Agriculture (USDA). They are available to federal expensive and can be cost prohibitive because most and state regulatory personnel as well as exporters in or all of the cost is the responsibility of the exporting industry to learn requirements of individual coun- country. These programs are conducted under super- tries to allow the import of specific commodities. vision of USDA-APHIS employees and are typically developed in partnership between APHIS and the United States Programs exporting country (USDA 2003). The USDA, Animal and Plant Health Inspec- Regulated Insect Pests tion Service (APHIS) is the agency responsible for preventing the introduction of invasive exotic species The first step for a new import is to develop a pest with the potential to cause harm to U.S. agricul- risk analysis for the pests of the commodity. Some ture or natural resources (http://www.aphis.usda. insects are of greater regulatory significance than gov/). USDA-APHIS provides guidelines, instruc- others, so species lists can be divided into quarantine tions, and procedures for performing inspections of pests and regulated non-quarantine pests. Regulated imported commodities, international mail, and pas- non-quarantine pests are those that are of economic sengers arriving in the United States. These are car- importance but are already widespread in a country. ried out by U.S. Customs and Border Patrol (CBP) The overall number of regulated stored-product personnel stationed at airports, maritime ports, and insects can vary considerably by country and world land points of entry. Cooperative state and federal region. New Zealand, for example, regulates 110 spe- programs are established to restrict interstate move- cies of stored-product pests (Table 1), while China ment of invasive species when domestic quarantines lists 18 species, and the European Union lists just a are established. single species (Alucita sacchari). The economic con- sequences of the establishment of these pests have On inspection, when insects are found to be nonreg- been severe both in terms of costs associated with ulated species, the inspector can release the shipment contamination, yield loss, and the cost of control to the importer (Caresche 1969). If the identification measures. Additional costs are incurred from trade of insects is uncertain, the decision may be deferred. restrictions that may occur when nonnative insects If the insect is a regulated pest species, the inspec- are established. tor can have the commodity treated to kill the pest, quarantine the shipment, return the shipment to Relatively few stored-product insects are quarantine sender, or have the commodity destroyed. A variety pests because so many already have been distributed of training programs and materials are available for worldwide by commerce. Many important stored- inspection personnel. Plant Protection and Quaran- product pests in North America are nonnative and tine (PPQ) unit within APHIS provides treatment have long been established in the United States. descriptions, guidelines, and certification programs These include Indianmeal moth, Plodia interpunc- for imports and domestic movement in the PPQ tella (Europe/Asia); lesser grain borer, Rhyzopertha Treatment Manual (USDA 2011a) and has devel- dominica (India/Tropics); confused flour beetle, Tri- oped a curriculum that several universities are now bolium confusum (Africa); Mediterranean flour moth, using (USDA 2011b). Similarly, a training manual Ephestia kuehniella (Europe); European grain moth, developed in Africa has an appendix covering Nemapogon granella as well as others. inspection of commodities for stored-product insects (Caresche et al. 1969). Presently, khapra beetle, Trogoderma granarium Everts (Figures 2 and 3) is the main actionable spe- To help reduce the burden on port inspectors and cies associated with stored products imported into the overall number of interceptions at U.S. ports, the United States (Stibick 2007). Trogoderma grana- the USDA-APHIS has established preclearance rium is a serious pest to stored foods, grains, cere- programs in a number of exporting countries that als, and spices throughout the world and has been include inspection, treatment, and other measures to found infesting 96 commodities (Hagstrum and 2 K-State Research and Extension Chapter 26 | Quarantine Figure 1. FAO model phytosanitary certificate. Stored Product Protection 3 Part IV | Management: Decision Making Table 1. Regulated stored-product insect pests in New Zealand including species that do not breed in storage but can occur in large enough numbers to require pest managementa. Acanthoscelides argillaceus Carpophilus freemani Lophocateres pusillus Acanthoscelides armitagei Carpophilus fumatus Lyctus africanus Acanthoscelides obvelatus Carpophilus lugubris Maruca vitrata* Acanthoscelides zeteki Carpophilus maculatus Mezium americanum Anthrenus pimpinellae isabellinus Carpophilus mutabilis Necrobia violacea Apate monachus Carpophilus mutilatus Niptus hololeucus Apomyelois ceratoniae Carpophilus obsoletus Opogona sacchari* Attagenus fasciatus Caulophilus oryzae Palorus ratzeburgi Attagenus jucundus Conopomorpha cramerella* Palorus subdepressus Attagenus unicolor Corcyra cephalonica Pectinophora gossypiella* Bruchidius incarnatus Cryptolestes turcicus Pharaxonotha kirschii Bruchus affinis Curculio caryae Phradonoma nobile Bruchus atomarius Curculio sayi Phthorimaea operculella strain Bruchus dentipes Cydia caryana Prostephanus truncatus Bruchus emarginatus Cydia nigricana Ptinus villiger Bruchus ervi Cylas brunneus Pyralis maihotalis Bruchus laticollis Cylas formicarius elegantulus Scrobipalposis solanivora Bruchus lentis Cylas puncticollis Sitophilus linearis Bruchus luteicornis Dinoderus bifoveolatus Stelidota geminata Bruchus pisorum Dinoderus distinctus Thaumatotibia leucotreta* Bruchus rufimanus Etiella zinckenella Tinea fictrix Bruchus rufipes Euscepes postfasciatus* Tribolium audax