{
  "eprintid": "6614",
  "rev_number": "1",
  "eprint_status": "archive",
  "userid": "4015",
  "dir": "disk0/00/00/66/14",
  "datestamp": "2005-12-19",
  "lastmod": "2009-08-20 14:29:18",
  "status_changed": "2009-08-20 14:29:18",
  "type": "thesis",
  "metadata_visibility": "show",
  "item_issues_count": "0",
  "doclang": "en",
  "projects": [
    "us_other",
    "int_ifoam"
  ],
  "refereed": "never",
  "budget": "0",
  "docurl": "http://kitkat.wvu.edu:8080/files/3435/Bomford_Michael_dissertation.zip",
  "altloc": [
    "http://www.cafcs.wvu.edu/plsc/organic/"
  ],
  "publicfulltext": "TRUE",
  "thesistype": "Ph.D. thesis",
  "creators": [
    {
      "name": {
        "family": "Bomford",
        "given": "Michael K."
      },
      "id": ""
    }
  ],
  "title": "Yield, pest density, and tomato flavor effects of companion planting in garden-scale studies incorporating tomato, basil, and Brussels sprout",
  "ispublished": "unpub",
  "subjects": [
    "8planthealth",
    "2cropcomb"
  ],
  "keywords": "Nelder fan, plant competition, overyielding, biointensive",
  "abstract": "Companion planting is a small-scale intercropping practice often associated with organic or biodynamic gardening. Two garden-scale studies tested popular companion planting claims by comparing garden beds devoted entirely to one of three or more test crops (monocultures) to all possible two-crop mixtures (dicultures) of the same species. A third study evaluated effects of planting density and crop ratio in three dicultures using a novel experimental design to create gradients in both factors. All studies incorporated basil (Ocimum basilicum L.), Brussels sprout (Brassica oleracea L.), and tomato (Lycopersicum esculentum Mill.). A preliminary study also included snap bean (Phaseolus vulgaris L.), radish (Raphanus sativus L.) before Brussels sprout, and dicultures of tomato and Brussels sprout with a white clover (Trifolium repens L.) living mulch. Double blind taste tests over three years showed no consistent preference for tomatoes grown with companions over those grown in monoculture. An apparent inhibitory effect of companion planting on some pests of Brussels sprout (e.g. imported cabbageworm, Pieris rapae L.; striped flea beetle, Phylollotreta striolata Fab.) in the first study was reversed in the second study when earlier planting of Brussels sprout allowed it to compete more effectively with its companions. Relative yield indices calculated for a range of densities (1.1 - 47.2 plants/square meter) and crop ratios indicated advantages (mean = 20%) to planting either tomato or Brussels sprout with basil companions, but no advantage to planting tomato and Brussels sprout together. The highest yields in tomato, basil, and Brussels sprout monocultures occurred at inter-plant spacings of 25, 25 and 40 cm respectively, suggesting advantages to high-density planting. Yield advantages to diculture were most pronounced at the highest densities tested, and in dicultures incorporating the highest proportions of basil. Canopy light absorption and soil moisture content were inversely correlated, and the use of light and water resources was correlated with plant density and biomass production. I conclude that garden-scale intercropping can offer advantages over monoculture, but these are not achieved simply by combining certain compatible companion species. Crop densty, ratio, and relative planting times all affect the way that companion species interact with one another and their environment.",
  "date": "2004-05",
  "date_type": "published",
  "institution": "West Virginia University",
  "department": "Plant and Soil Science",
  "referencetext": "Abdul-Baki, A.A., J.R. Teasdale, R.W. Goth, and K.G. Haynes. 2002. Marketable yields of fresh-market tomatoes grown in plastic and hairy vetch mulches. HortScience 37: 878-881. Altieri, Miguel A. 1991. How best can we use biodiversity in agroecoysytems?. Outlook on Agriculture 20: 15-23. Altieri, Miguel A. 1994. Insect manipulation through weed management. In Biodiversity and Pest Management in Agroecosystems. 25-38. New York, NY: Food Products Press. Andow, D.A. 1991. Vegetational diversity and arthropod population response. Annual Review of Entomology 36: 561-86. Antonovics, J., and N.L. Fowler. 1985. Analysis of frequency and density effects on growth in mixtures of Salvia spendens and Linum grandiflorum using hexagonal fan designs. Journal of Ecology 73: 219-234. Asman, Karolina, Barbara Ekbom, and Birgitta Ramert. 2001. Effect of intercropping on oviposition and emigration behavior of the leek moth (Lepidoptera: Acrolepiidae) and the diamondback moth (Lepidoptera: Plutellidae). Environmental Entomology 30: 288-294. Bach, C.E. 1980. Effect of plant density and diversity in the populations of a specialist herbivore, the striped cucumber beetle, Acalymma vittata. Ecology 51: 1515-1530. Bach, C.E., and B.E. Tabashnik. 1990. Effects of nonhost plant neighbors on population densities and parasitism rates of the diamondback moth (Lepidoptera: Plutellidae). Environmental Entomology 19: 987-994. Ballaré, C.L., Ana L. Scopel, and R.A. Sanchez. 1990. Far-red radiation reflected from adjacent leaves: an early signal of competition in plant canopies. Science 247: 329-332. Bellamy, David. 2003. Companion plants. Backyard organic gardening. Http://home.vtown.com.au/dbellamy/contents.html Bender, D.A., W.P. Morrison and R.E. Frisbie.1999. Intercropping cabbage and Indian mustard for potential control of Lepidopterous and other insects. HortScience 34: 275-279. Beyfuss, Robert, and Marvin Pritts. 1994. Ecogardening Factsheet #10 - Companion Planting. Ecogardening. http://www.hort.cornell.edu/gardening/fctsheet/egfactsh/complant.html: Cornell Cooperative Extension. Blackmer, T.M., and J.S. Schepers. 1994. Techniques for monitoring crop nitrogen status in corn. Communications in Soil Science and Plant Analysis 25:1791–1800. Boffey, T.B., and A. Veevers. 1977. Balanced designs for two component competition experiments. Euphytica 26: 481-484. Bradley, F.M. & B.W. Ellis 1992. All-New Encyclopedia of Organic Gardening. Rodale Press, Emmaus, PA. Brandsaeter, L.O., J. Netland, and R. Meadow. 1998. Yields, weeds, pests and soil nitrogen in a white clover-cabbage living mulch system. Biological Agriculture and Horticulture 16: 291-309. Brown, Martha. 2000. The Farm and Garden Projects at the University of California, Santa Cruz. Chronicle of the University of California 3 (Spring 2000). Http://zzyx.ucsc.edu/casfs/about/fgstory.html: Berkley Center for Studies in Higher Education. Brown, J.E., W.E. Splittstoesser, and J.M. Gerber. 1985. Production and economic returns of vegetable intercropping systems. Journal of the American Society of Horticultural Science 110, 3: 350-353. City Farmer. 2002. 44% of Vancouver Households Grow Food, Says City Farmer. Urban Agriculture Notes. Http://www.cityfarmer.org/44percent.html#44percent Clark, E.A. and C.A. Francis 1985. Transgressive yielding in bean:maize intercrops; interference in time and space. Field Crops Research 11: 37-53. Connolly, J. 1987. On the use of responsive models in mixture experiments. Oecologia 72: 95-103. Connolly, J., P. Wayne, and R. Murray. 1990. Time course of plant-plant interactions in experimental mixtures of annuals: Density, frequency, and nutrient effects. Oecologia 82: 513-526. Cousens, Roger. 1991. Aspects of the design and interpretation of competition (interference) experiments. Weed Technology 5: 664-673. Cunningham, D. 2001. Louise Riotte 1909-1998. Louise Riotte, Gardening by Astrology. Http://www.solsticepoint.com/astrologersmemorial/riotte.html: Solstice Point. Cunningham, S.J. 1998. Great Garden Companions: A Companion-Planting System for a Beautiful, Chemical-Free Vegetable Garden. Emmaus, PA: Rodale Press. Decagon Devices. 1989. Sunfleck Ceptometer User’s Manual. Pullman, WA. Dempster, J. P. and T. H. Coaker. 1974. Diversification of crop ecosystems as a means of controlling pests, pp. 106-114. In D. Price-Jones and M. E. Solomon (eds.), Biology in pest and disease control, Blackwell, Oxford. De Wit, C.T. 1960. On competition. Versl. Landbk Ondea No. 66.S. Eriksson, O.l9S6. Mobility and space capture in the stoloniferous plant Fotenrilla anserina. Oikos 46:82-87 Dwyer, L.M., M. Tollenaar, and L. Houwing. 1991. A nondestructive method to monitor leaf greenness in corn. Canadian Journal of Plant Science 71:505–509. Dyck, G.V. & A.J. Barnard 1976. Suppression of couchgrass by Italian ryegrass and broad red clover undersown in barley and field beans. Journal of Agricultural Science, Cambridge 87: 93-108. Ecology Action. 2003. Grow Biointensive. Ecology Action. Http://www.growbiointensive.org/biointensive/GROW-BIOINTENSIVE.html Elmstrom, K.M., D.A. Andow, and W.W. Barclay. 1988. Flea beetle movement in a broccoli monoculture and diculture. Environmental Entomology 17: 299–305. Finch, S., and R.H. Collier. 2000. Host-plant selection by insects -- a theory based on 'appropriate/inappropriate landings' by pest insects of cruciferous plants. Entomologia Experimentalis et Applicata 96: 91-102. Finch, S., H. Billiald, and R.H. Collier. 2003. Companion planting - do aromatic plants disrupt host-plant finding by the cabbage root fly and the onion fly more effectively than non-aromatic plants?. Entomologia Experimentalis et Applicata 109: 183-195. Firbank, L.G., and A.R. Watkinson. 1990. On the effects of competition: from monocultures to mixtures. In Perspectives on Plant Competition, J.B. Grace & D. Tilman (eds.). 165-192. London: Academic Press. Francis, Charles A.. 1986. Introduction: Distribution and Importance of Multiple Cropping. In Multiple Cropping Systems, Charles A. Francis (ed.). 1-19. New York: Macmillan. Fraser, Tina. 2002. Companion planting: Relationships in plant communities. Eco-Farm and Garden (newsletter of the Canadian Organic Growers). Spring 2002. Freckleton, R.P., and A.R. Watkinson. 2000. Designs for greenhouse studies of interactions between plants: an analytical perspective. Journal of Ecology 88: 386-391. Fukuoka, Masanobu, 1982. The Plowboy Interview: 40 Years of Natural Farming. Mother Earth News July/August, 1982. The Fukuoka Farming Website. Http://www.fukuokafarmingol.net/faplow.html:July/August. Gandee, Jesse and Gerard D'Souza. 2001. Agriculture in the West Virginia Economy. Electronic Publications. Http://www.caf.wvu.edu/gdsouzawww/agricultureinWVeconomy.pdf: West Virginia University. GardenGuides. 2003. Tips and techniques: Vegetable companion chart. GardenGuides. Http://www.gardenguides.com/TipsandTechniques/vcomp.htm Garrett, K.A. and C.C. Mundt. 2000. Host diversity can reduce potato late blight severity for focal and general patterns of primary inoculum. Phytopathology 12:1307-1312. Goldberg, D.E. 1994. Influence of competition at the community level: an experimental version of the null models approach. Ecology 75: 1503-1506. Goldberg, D.E., T. Rajaniemi, J. Gurevitch, and A. Stewart-Oaten. 1999. Empirical approaches to quantifying interaction intensity competition and facilitation along productivity gradients. Ecology 80: 1118-1131. Gianquinto, G., P. Sambo and S. Bona. 2003. The use of SPAD-502 chlorophyll meter for dynamically optimizing the nitrogen supply in potato crop: A methodological approach. Acta Horticulturae 627:217-224 Gibson, D.J., J. Connolly, D.C. Hartnett, and J.D. Weidenhamer. 1999. Designs for greenhouse studies of interaction between plants. Journal of Ecology 87: 1-16. Giunta, F., R Motzo, and M. Deidda. 2002. SPAD readings and associated leaf traits in durum wheat, barley and triticale cultivars. Euphytica 125: 197-205. Grace, J.B. 1995. On the measurement of plant competition intensity. Ecology 76: 152-156. Grime, J.P. 1977. Evidence for the existence of three primary strategies in plants and its relevance to ecological and evolutionary theory. American Naturalist 111: 1169-1194. Gupta, P.D., Thorsteinson, A.J.. 1960. Food plant relationships of the diamond-back moth (Plutella maculipennis (Curt.)). II Sensory regulation of oviposition of the adult female. Entomologia Experimentalis et Applicata 3: 305-314. Hart, Robert D. 1986. \"Ecological framework for multiple cropping systems.\" In Multiple Cropping Systems, Charles A Francis (ed.). 40-56. New York: Macmillan. Held, D.W., P. Gonsiska, and D.A. Potter. 2003. Evaluating companion planting and non-host masking odors for protecting roses from the Japanese Beetle (Coleoptera: Scarabaeidae). Environmental Entomology 96: 81-87. Haynes, R.J. 1980. Competitive aspects of the grass-legume association. Advances in Agronomy 33: 227-261. Hill, Stuart B. 1975. Companion Plants. Ecological Agriculture Projects. Http://eap.mcgill.ca/Publications/EAP55.htm: McGill University. Hinkamp, Dennis. 1999. \"Do Organic Watchdogs Work?.\" http://www2.ext.usu.edu/coop/garden/garden/organic.htm: Utah State University Extension. Hokkanen, H.M.T 1991. Trap cropping in pest management. Annual Review of Entomology 36: 119-138. Holt, B.F., and I.K. Smith. 1998. Small-scale intensive cultivation methods: the effects of deep hand tillage on the productivity of bush beans and red beets. American Journal of Alternative Agriculture 13: 29-39. Hooks, C.R.R., and M.W. Johnson. 2003. Impact of agricultural diversification on the insect community of cruciferous crops. Crop Protection 22: 223-238. Jeavons, John 1982. How to grow more vegetables than you ever thought possible on less land than you can imagine. Ten Speed Press, Berkeley, CA. Jeavons, J.C. 2001. Biointensive sustainable mini-farming III. System Performance – initial trials. Journal of Sustainable Agriculture 19: 77-83. Jeavons, John. 2003. Meet John Jeavons. Grow Biointensive Workshops. Http://www.johnjeavons.info/john-jeavons.html Jiang, X.X., and B.S. Vergara. 1986. Chlorophyll meter (SPAD-501) to quantify relative cold tolerance in rice. International Rice Research Newsletter 11:10–11. JMP, Version 4. SAS Institute Inc., Cary, NC, 1989-2001. Jolliffe, P.A. 1997. Are mixed populations of plant species more productive than pure stands? Oikos 80: 595-602. Jolliffe, P.A. 2000. The replacement series. Journal of Ecology 88: 371-385. Joliffe, P.A., and F.M. Wanjau. 1999. Competition and productivity in crop mixtures: some properties of productive intercrops. Journal of Agricultural Science 132: 425-435. Kennedy, J.S., C.O. Booth & W.J.S. Kershaw 1959. Host finding by aphids in the field. II. Aphis fabae (gynoparae) and Brevicorne brassicae; with a re-appraisal of the role of host-finding behavior and virus spread. Annals of Applied Biology 47: 424-444. Kerrigan, Jack, and Margaret Nagel. 1998. Vegetables: Planning. Ohio Master Gardener Online Manual. Http://www.hcs.ohio-state.edu/mg/manual/veg2.htm: Ohio State University Extension. Lambert, J.D.H., J.T. Arnason, A. Serratos, B.J.R. Philogene, and M.A. Faris. 1987. Role of intercropped red clover in inhibiting European corn borer (Lepidoptera: Pyralidae) damage to corn in Eastern Ontario. Journal of Economic Entomology 80: 1192–1196. Lamp, W.O. 1991. Reduced Empoasca fabae (Homoptera: Cicadellidae) density in oat-alfalfa intercrop systems. Environmental Entomology 20: 118-126. Lawless, H.T. and H. Heymann. 1998a. Introduction and overview. In Sensory Evaluation of Food: Principles and Practices. 1-28. New York: Chapman & Hall. Lawless, H.T. and H. Heymann. 1998b. Context effects and biases in sensory judgement. In Sensory Evaluation of Food: Principles and Practices. 301-340. New York: Chapman & Hall. Liebman, M. & E. Dyck 1993. Crop rotation and intercropping strategies for weed management. Ecological Applications 3: 92-122. Maguire, L.A.. 1984. Influence of surrounding plants on densities of Pieris rapae (L.) eggs and larvae (Lepidoptera: Pieridae) on collards. Environmental Entomology 13: 464-468. Maina, Godfrey G., Joel S. Brown, and Mordechai Gersani. 2002. Intra-plant versus inter-plant root competition in beans: Avoidance, resource matching, or tragedy of the commons. Plant Ecology 160: 235-247. Markwell, J., J.C. Osterman and J.L. Mitchell. 1995. Calibration of the Minolta SPAD-502 leaf chlorophyll meter. Photosynthesis Research 46: 467-472. Martini, E.A., J.S. Buyer, D.C. Bryant, T.K. Hartz, and R.F. Denison. 2004. Yield increases during the organic transition: Improving soil quality, or increasing experience? Field Crops Research 86: 255-266. Mead, Roger. 1986. Statistical methods for multiple cropping systems. In Multiple Cropping Systems, Francis, Charles A. (ed.). 317-350. New York: Macmillan. Mills, D.J., C.B. Coffman, J.R. Teasdale, K.L. Everts, and J.D. Anderson. 2002. Factors associated with foliage disease of staked fresh market tomatoes grown under different bed strategies. Plant Disease 86: 356-361. National Research Council, 1989. Alternative Agriculture. National Academy Press, Washington, DC, 447 pp Nelder, J.A, 1962. New kinds of systematic designs for spacing experiments. Biometrics 18:283-307 Perrin, R.M. & M.L. Phillips, 1978. Some effects of mixed cropping on the population dynamics of insect pests. Entomologia Experimentalis et Applicata 24:385-393. Perrin, R.M. 1977. Pest management in multiple cropping systems. Agroecosystems 3: 93-118. Peryam, D.R. 1958. Sensory difference tests. Journal of Food Technology 12: 231-236. Phillips, M.L. 1977. Some effects of inter-cropping Brussels sprouts and tomatoes on infestations of Plutella maculipennis (Curt.) and Alerodes brassicae (Walk.). Unpublished MSc thesis, University of London. Plucknett, D.L., and Nigel J.H. Smith. 1986. Historical Perspectives on Multiple Cropping. In Multiple Cropping Systems, Charles A. Francis. 20-39. New York, NY: Macmillan. Primal Seeds. 2002. Companion Planting. Primal Seeds. http://primalseeds.nologic.org/companionplanting.htm Putnam, D.H and D.L. Allan 1992. Mechanisms for overyielding in a sunflower/mustard intercrop. Agronomy Journal 84: 188-195. Radke, J.K. and R.T. Hagstrom 1976. Strip intercropping for wind protection. p. 201-222 in M. Stelley (Ed.) Multiple Cropping. ASA Special Publication 27. ASA, CSSA, and SSSA, Madison, WI. Rahn, C.R., C.D. Paterson, and L.V.V. Vaidyanathan. 1993. Improving the use of nitrogen in Brassicae rotations. Acta Horticulturae 339: 207-218. Rick, C.M. 1978. The Tomato. Scientific American 239: 76-87. Riotte, Louise 1975. Carrots Love Tomatoes: Secrets of Companion Planting for Successful Gardening. Storey Books, Pownel, VT. Root, R.B.. 1973. Organization of plant-arthropod association in simple and diverse habitats: the fauna of collards (Brassica oleracea). Ecological Monograph 43: 95-124. Sackville Hamilton, N.R. 1994. Replacement and additive designs for plant competition studies. Journal of Applied Ecology 31: 599-603. Sackville Hamilton, N.R., C. Matthew and G. Lemnaire. 1995. In defense of the -3/2 boundary rule: a re-evaluation of self-thinning concepts and status. Annals of Botany 76: 569-577. Schmid, B., and J.L. Harper. 1985. Clonal growth in grassland perennials 1. density and pattern-dependent competition between plants with different growth forms. Journal of Ecology 73: 793-808. Singh, D. and S.K. Kothari. 1997. Intercropping effects on mustard aphid (Lipaphis erysimi Kaltenback) populations. Crop Science 37: 1263-1264. Simmons, Leah J. 1998. Riotte sows seeds of success. The Daily Ardmoreite. Http://www.ardmoreite.com/stories/090998/liv_riotte.shtml Smith, J.G.1976. Influence of crop background on natural enemies of aphids on Brussels sprouts. Annals of Applied Biology 83: 15-29. Smith, H.A. and R. McSorley, 2000. Intercropping and pest management: A review of major concepts. American Entomologist 46: 154-161 Smith, H.A., R. McSorley, and J.A.S. Izaguirre. 2001. Effect of intercropping common bean with poor hosts and nonhosts on numbers of immature whiteflies (Homoptera:Aleyrodidae) in the Salamá Valley, Guatemala. Environmental Entomology 30: 89-100. Smith, L.J. 2002. Intercropping with resistant cultivars reduces early blight and root knot disease on susceptible cultivars of tomato (Lycopersicon esculentum). MSc thesis, West Virginia Unversity. Snaydon, R.W. 1991. Replacement or additive designs for competition studies? Journal of Applied Ecology 28: 930-946. Stobbe, E.H., A.T. Iverson, A. Kumaragamaga, and J. Dean 1990. Intercrop peas with yellow mustard or canola, it pays. p. 159 in Agronomy Abstracts. ASA, Madison, WI. Suehiro, K. and Ogawa, H. 1980. Competition between two annual herbs, Atriplex gmelini C.A. Mey and Chenopodium album L., in mixed cultures irrigated with seawater of various concentrations. Oecologia 45: 167-177. Tabashnik, B.E. 1987. Plant secondary compounds as oviposition deterrents for cabbage butterfly, Pieris rapae (Lepidoptera: Pieridae). Journal of Chemical Ecology 13: 309-316. Tahvanainen, J.O. and R.B. Root. 1972. The influence of vegetational diversity on the population ecology of a specialized herbivore, Phyllotreta cruciferae. Oecologia 10: 321-346. Theunissen, J. and H. Den Ouden. 1980. Effects of intercropping with Spergula arvensis on pests of Brussels sprouts. Entomologia Exeperimentalis et Applicata 27: 260-268. Theunissen, J., C.J.H. Booij, and L.A.P. Lotz. 1995. Effects of intercropping white cabbage with clovers on pest infestation and yield. Entomologia Experimentalis et Applicata 74:7-16. Theunissen, J. 1997. Intercropping in field vegetables as an approach to sustainable horticulture. Outlook on Agriculture 26: 95-99. Uvah, I.I.I. and T.H. Coaker. 1984. Effect of mixed cropping on some insect pests of carrots and onions. Entomologia Experimentalis et Applicata 36: 159-167. US Census Bureau. 2003. West Virginia. State and County Quick Facts. Http://quickfacts.census.gov/qfd/states/54000.html: US Census Bureau. Vandermeer, J. 1989. The Ecology of Intercropping. Cambridge University Press, Cambridge. Vaughn, S.F. and R.A. Boydston. 1997. Volatile allelochemicals released from crucifer green manures. The Journal of Chemical Ecology 23:2107-2116. Vostrikov, P. 1915. Tomatoes as insecticides: The importance of solanaceae in the control of pests of agriculture. Novotcherkassk 10: 9-12. Watanabe, S., Y. Hatanaka, and K. Inada. 1980. Development of a digital chlorophyll meter: I. Structure and performance. Japanese Journal of Crop Science 49: 89-90. Watkinson, A.R. 1980. Density-dependence in single-species populations of plants. Journal of Theoretical Biology 83: 345-357. Weigelt, Alexandra, and Peter Jolliffe. 2003. Indices of plant competition. Journal of Ecology 91: 707-720. Weiss, M.J., B.G. Schatz, J.C. Gardner, and B.A. Nead. 1994. Flea beetle (Coleoptera: Chrysomelidae) populations and crop yield in field pea and oilseed rape intercrops. Environmental Entomology 23: 654-658. Weisstein, E. W. 1999. Pascal's Triangle. MathWorld. Http://mathworld.wolfram.com/PascalsTriangle.html: Wolfram Research Inc. Westerveld, S.M., A.W. McKeown, M.R. McDonald, and C.D. Scott-Dupree. 2003. Chlorophyll and nitrate meters as nitrogen monitoring tools for selected vegetables in southern Ontario. Acta Horticulturae 627: 259-266 Weston, L.A. 1996. Utilization of allelopathy for weed management in agroecosystems. Agronomy Journal 88: 860-866. Westoby, M. 1984. The self-thinning rule. Advances in Ecological Research 14: 167-225. Willey, R.W. 1979. Intercropping – its importance and research needs. Part 1. Competition and yield advantages. Field Crops Abstracts 32: 1-10. Zar, J.H. 1984. Biostatistical Analysis. Simon and Schuster: New Jersey. Zhao, J.Z., G.S. Ayers, E.J. Grafius, and F.W. Stehr. 1992. Effects of neighboring nectar-producing plants on populations of pest Lepidoptera and their parasitoids in broccoli plantings. Great Lakes Entomologist 25: 253-258.",
  "full_text_status": "public",
  "documents": [
    {
      "docid": "5223",
      "rev_number": "1",
      "eprintid": "6614",
      "pos": "1",
      "format": "application/pdf",
      "language": "en",
      "security": "public",
      "main": "6614.pdf",
      "files": [
        {
          "filename": "6614.pdf",
          "filesize": "2401553",
          "url": "http://orgprints.org/6614/1/6614.pdf"
        }
      ]
    },
    {
      "docid": "5224",
      "rev_number": "1",
      "eprintid": "6614",
      "pos": "2",
      "format": "multimedia",
      "language": "en",
      "security": "public",
      "main": "6614a.ppt",
      "files": [
        {
          "filename": "6614a.ppt",
          "filesize": "2580480",
          "url": "http://orgprints.org/6614/2/6614a.ppt"
        }
      ]
    },
    {
      "docid": "5225",
      "rev_number": "1",
      "eprintid": "6614",
      "pos": "3",
      "format": "application/pdf",
      "language": "en",
      "security": "public",
      "main": "6614b.pdf",
      "files": [
        {
          "filename": "6614b.pdf",
          "filesize": "183993",
          "url": "http://orgprints.org/6614/3/6614b.pdf"
        }
      ]
    }
  ]
}