Ticks and Disease |
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Page 199
... shown , there is a tendency for peak output to be reached in the first few days . There 140 Number of eggs 120 100 80 60 40 20 XIII 10 20 30 Days FIG . 74. Egg production by females of Ixodes hexagonus under different conditions of ...
... shown , there is a tendency for peak output to be reached in the first few days . There 140 Number of eggs 120 100 80 60 40 20 XIII 10 20 30 Days FIG . 74. Egg production by females of Ixodes hexagonus under different conditions of ...
Page 234
... shown by Bodenheimer ( 1934 ) . Fifty - nine observa- tions on nymphs and adults in temperature gradients ranging from 2 ° C to 47.7 ° C failed to exhibit a significant response to changing temperature stimuli . The optimum conditions ...
... shown by Bodenheimer ( 1934 ) . Fifty - nine observa- tions on nymphs and adults in temperature gradients ranging from 2 ° C to 47.7 ° C failed to exhibit a significant response to changing temperature stimuli . The optimum conditions ...
Page 410
... shown by Mac- kerras ( 1947 ) , who found that BHC ( 0 · 05 % y - isomer ) had a higher and more rapid effect on B. annulatus than did emulsions of 0-35-0-55 % DDT . Similarly Whitnall and Bradford ( 1947 ) re- corded that for arsenic ...
... shown by Mac- kerras ( 1947 ) , who found that BHC ( 0 · 05 % y - isomer ) had a higher and more rapid effect on B. annulatus than did emulsions of 0-35-0-55 % DDT . Similarly Whitnall and Bradford ( 1947 ) re- corded that for arsenic ...
Contents
INTRODUCTION | 1 |
CUTICLETHE KEY TO TICK ADAPTABILITY | 10 |
EXTERNAL FEATURES OF SOME ECONOMICALLY IMPORTANT SPECIES | 27 |
Copyright | |
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Common terms and phrases
activity Africa Amblyomma andersoni animals appear areas argasid Argasidae attached Babesia basis capituli bite body Boophilus broad capitulum cattle cells Cervical grooves cheliceral colour coxa coxal cuticle cytoplasm Dermacentor disease dogs dorsal view eggs endocuticle engorged epicuticle evertsi external spur feeding fluid fully fed genus granules Haemaphysalis hairs hard ticks hexagonus Hoogstraal host humidity Hyalomma hypostome infection Ixodes ricinus Ixodidae large number larvae larvae and nymphs lateral layer Lees legs length louping ill lumen male membrane microplus Milne moult muscles Nuttall nymphal nymphs nymphs and adults occur palp palpi parasites Parasitology pathogens period persicus pharynx Pomerantzev posterior margin punctations rabbits relapsing fever reported Rhipicephalus rickettsiae rounded salivary glands sanguineus scutum sheep soft ticks spermatophore spiracle Spiracular plate spirochaetes spotted fever spur on coxa surface tarsus tarsus IV temperature Theileria tick species tissues transmission transmitted transverse unfed females variabilis vector ventral virus whilst