1. Guidelines for safety tests and registration of bacterial pesticides

   • H. D. Burges
   • A. Krieg
   • Huguette de Barjac

   OriginalPaper Pages: 225 - 235

2. Parasitism byPerilitus coccinellae [Hym.: Braconidae] of indigenous coccinellid hosts and the introducedCoccinella septempunctata [Col.: Coccinellidae], with notes on winter mortality

   • B. Cartwright
   • R. D. Eikenbary
   • G. W. Angalet

   OriginalPaper Pages: 237 - 243

3. Predators and parasites of temporary row crop pests: Agents of irreplaceable mortality or scavengers acting prior to other mortality factors?

   • Davy Jones

   OriginalPaper Pages: 245 - 265

4. Cytogenetic studies in mammalian cells after treatment with insect pathogenic viruses [Baculoviridae]. I.In vivo studies with rodents

   • R. Reimann
   • H. G. Miltenburger

   OriginalPaper Pages: 267 - 276

5. Within-tree response of Nantucket pine tip moth,Rhyacionia frustrana [Lep.: Tortricidae] Parasitoids to varying host densities

   • J. H. Lashomb
   • A. L. Steinhauer

   OriginalPaper Pages: 277 - 281

6. Pathogenesis of infection by the hyphomycetous fungus,Tolypocladium cylindrosporum inAedes sierrensis andCulex tarsalis [Dip.: Culicidae]

   • George G. Soarés Jr.

   OriginalPaper Pages: 283 - 299

7. Evaluation ofStethorus nigripes [Col.: Coccinellidae] for biological control of spider mites in California almond orchards

   • Marjorie A. Hoy
   • Katherine B. Smith

   OriginalPaper Pages: 301 - 310

8. Natural enemies ofLymantria dispar [Lep.: Lymantriidae] eggs in Central Pennsylvania, U.S.A., and a review of the world literature on natural enemies ofL. dispar eggs

   • M. W. Brown
   • E. Alan Cameron

   OriginalPaper Pages: 311 - 321

9. Agressivité deConidiobolus obscurus vis-a-vis du puceron du pois,Acyrthosiphon pisum (Hem.: Aphididae] 1.-Comportement des conidies sur la cuticule avant la pénétration du tube germinatif dans l'insecte

   • J. -P. Latgé
   • B. Papierok
   • L. Sampedro

   OriginalPaper Pages: 323 - 330

10. Field observations on impact of egg parasiteTelenomus remus [Hym.: Scelionidae] on tobacco caterpillar,Spodoptera litura [Lep.: Noctuidae] in tobacco nurseries in Andhra Pradesh, India

    • B. G. Joshi
    • S. Sitaramaiah
    • G. Ramaprasad

    OriginalPaper Pages: 331 - 334

11. The host specificity ofHartigia albomaculatus (Hym.: Cephidae] and its potential effectiveness in the biological control of European blackberry

    • E. Bruzzese

    OriginalPaper Pages: 335 - 342

12. Observations onCheyletus cacahuamilpensis, a predator of the tenuipalpid miteDolichotetranychus floridanus

    • M. I. Mohamed
    • M. A. Zaher
    • M. F. Hassan

    OriginalPaper Pages: 343 - 347

13. Development time ofCoccinella septempunctata in relation to constant temperatures[Col.: Coccinellidae]

    • George D. Butler Jr.

    OriginalPaper Pages: 349 - 352