Biological Control Agents

International Symposia on Biological
Control of Weeds


Volume V - 1980



PageTitle
3Lessons from early attempts at biological control of  weeds in Queensland
11Conflicting interests and the biological control of weeds
21Aspects of weed biology important to biological control
31The management of Salvinia molesta in Papua New Guinea
35Growth of Salvinia molesta as affected by nutrition and water temperature
47Stress as a strategy in the biological control of weeds (ABSTRACT ONLY)
49Aquatic weed control a plea for appropriate technology for the third world
57International activity in biological control of weeds: Patterns, limitations and needs
75Recent thoughts on exploration and discovery for biological control of weeds
81Importance of geographic variation in agents selected for biological control of weeds
91Genetic and phenotypic variability, genetic variance, and the success of establishment of insect introductions for the biological control of weeds
103Optimal sampling strategies in the biological control of weeds
113Biogeography, apparency and exploration for biological control agents in exotic ranges of weeds
125Exploration for biotic agents for the control of Rumex crispus
153Studies on some natural enemies of puncturevine Tribulus terrestris occurring in Karnataka State, India
161Phytophages associated with Acacia nilotica in Pakistan and possibilities of their introduction into Australia
167Progress in the exploration for biological control agents for Salvinia molesta
175Prognosis for biological control of weeds of southwestern U.S. rangelands
201Hyperparasites: An option for the biocontrol of weeds
207Some aspects of quality and quality control of biological control agents during insectary propagation
221Impact of diseases on insects and procedures for detecting and eliminating them from cultures prior to release for biological control
233Considerations in rearing Bradyrrhoa gilveolella for control of Chondrilla juncea in Australia
241Entomopathogens associated with insects used for biological control of weeds
249Status of the use of grass carp (Ctenopharyngodon idella Val.)
261Aquatic weed control in irrigation and drainage canals in Egypt by means of grass carp (Ctenopharyngodon idella)
273Grass carp for Australia - A fisheries viewpoint
281Food preference and growth of grass carp, Ctenopharyngodon idella, and hybrid carp, C. idella female X Aristichthys nobilis male
287The use of grass carp for control of aquatic vegetation in Arkansas
293Biological control of weeds with plant pathogens. Prospectus - 1980
301Response of safflower cultivars to Puccinia jaceae collected from diffuse knapweed in eastern Europe
307Evaluation of Fusarium roseum 'culmorum' as a biological control for Hydrilla verticillata: Safety
325Mortality of Canada thistle due to Puccinia punctiformis
333Present status and prospects of the program in Europe for the microbiological control of Australian weeds
341Puccinia xanthi forma specialis Ambrosia-trifidae, a microcyclic rust for the biological control of giant ragweed, Ambrosia trifida (Compositae) (ABSTRACT ONLY)
345Evaluating biocontrol of weeds projects
355Santa Cruz Island - Revisited. Sequential photography records the causation, rates of progress, and lasting benefits of successful biological weed control
367Release of Tucumania tapiacola (Lepidoptera: Pyralidae) in South Africa against Opuntia aurantiaca: The value of detailed monitoring
375The role of imported natural enemies in suppressing re-growth of prickly pear, Opuntia ficus-indica, in South Africa
383The biological control of Opuntia aurantiaca in South Africa: Evaluation and emerging control strategies
389Nothanguina phyllobia, a nematode biocontrol of silverleaf nightshade
393Biological control and its effect on production and survival of waterhyacinth leaves
411Defoliation pressure index: A tool for biological control of weeds
415Selection of effective biological control agents from artificial defoliation/insect cage experiments
441Compatibility of Rhinocyllus conicus, Trichosirocalus horridus and 2,4-D for Carduus thistle control
447Seed and stem weevils of puncturevine: A comparative study of impact, interaction, and insect strategy
471Studies of some potential biocontrol agents for Parthenium hysterophorus in Mexico
483Biological control of moisture stressed Opuntia aurantiaca using Dactylopius austrinus
489The present status of the biological control of Cordia curassavica in Malaysia
499Preliminary observations on Longitarsus jacobaeae introduced for the control of ragwort in Australia
507A discussion of the limited establishment of Perapion antiquum and a review of the current status of biological control of Emex spp. in Australia
515Interactions of field populations of indigenous egg predators, imported Microlarinus weevils, and puncturevine in southern California
529Biological control of water hyacinth in Australia
537European organisms of interest for the biological control of Convolvulus arvensis in the United States
545New activities in biological control of weeds in Australia I. Common heliotrope, Heliotropium europaeum
563New activities in biological control of weeds in Australia II. Echium plantagineum: curse or salvation?
575New activities in biological control of weeds in Australia III. St. John's wort: Hypericum perforatum
583Control of aquatic Alternanthera philoxeroides in Australia; Another success for Agasicles hygrophila
589Biological control of Harrisia cactus, Eriocereus martinii, in Queensland by the mealybug Hypogeococcus festerianus
595Impact of grasshoppers on the rush skeletonweed gall midge in southwestern Idaho
599The biological control of Paterson's curse. Echium plantagineum: Northern hemisphere studies
603Ragwort, Senecio jacobaea, in Victoria and Renewed attempts to establish the cinnabar moth, Tyria jacobaeae, for its control
609Current status of prickly pear control by Cactoblastis cactorum in Queensland
619Research on biological control of blackberry and ragwort, Department of Crown Lands and Survey, Victoria (ABSTRACT ONLY)
621Biological control of weeds with fungal plant pathogens (ABSTRACT ONLY)
623Biological control of tansy ragwort in the state of Oregon, U.S.A.
627A computer-assisted method for the storage, retrieval and analysis of biological field data
635Progress report on biological control of nodding thistle (Carduus nutans) in New Zealand
639Biological control of weeds in South Africa (ABSTRACT ONLY)
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USDA Forest Service Bugwood University of Georgia