. Adventures with animals and plants. Biology. 396 How Liv'mg Thmgs Affect One Afiother unit vii. ^=^^^^" WARlSlINIG JAPANESE BEETLE QUARANTINE .. ra)£RAL AND SllftTt LAWS PROH«T CARRYlNq THE FOLLOWING , PROCUa BEYOND THIS POINT WILESS CERTIFIED: * THRODCHOUT \: THE - YEAR h N«l«T. Orii«ir»T*!l at4 Om-olwust ISkx*. Ptantl. Pfsu ItpotJ of AB Klnils. or Ejrtk. Vrst, Conpoil oaa Manure, ' BETWEFN JiJNF ;5 i f^ND - OC^OSER IS Chym. R»arvt. Pp«i. 'B>a4lo«3. L»tlur*, rffW>»^, Crttn Owii. Wg« jhiej i*#Hk ' ^?ftlM. Ch<rT*r5. Outdoor Crown Flowrri, L'mkirshcM Grains. Slr^w; &qu
. Adventures with animals and plants. Biology. 396 How Liv'mg Thmgs Affect One Afiother unit vii. ^=^^^^" WARlSlINIG JAPANESE BEETLE QUARANTINE .. ra)£RAL AND SllftTt LAWS PROH«T CARRYlNq THE FOLLOWING , PROCUa BEYOND THIS POINT WILESS CERTIFIED: * THRODCHOUT \: THE - YEAR h N«l«T. Orii«ir»T*!l at4 Om-olwust ISkx*. Ptantl. Pfsu ItpotJ of AB Klnils. or Ejrtk. Vrst, Conpoil oaa Manure, ' BETWEFN JiJNF ;5 i f^ND - OC^OSER IS Chym. R»arvt. Pp«i. 'B>a4lo«3. L»tlur*, rffW>»^, Crttn Owii. Wg« jhiej i*#Hk ' ^?ftlM. Ch<rT*r5. Outdoor Crown Flowrri, L'mkirshcM Grains. Slr^w; "" iTHM. CMtTlri. OuidMr Sro<r« T\amts. I'mkrrjMd Gnhis Slrjit Hay anA l^ratM iCTMi. iixl B» HnHowln* *< Product fro* Ike PkHadrtEhta MartiM Kb. L_ ^S^t*l -r^s '^^'jKfe. Fig. 347 T^^ destructive Japanese beetle. The adult destroys leaves; the larvae in- jure the roots. How does the Departuie^it of Agriculture try to stop its further spread? (u. s. department of agriculture) kingbird, which are particularly useful to us in eating harmful insects. For many years, too, insect allies have been sought, larger insects which prey on our insect enemies or insects that live as parasites on them. When a species of scale insect threatened the orange crop in California, ladybird beetles, which are natural ene- mies of the scale, were raised in large numbers and turned loose on their prey. The search for bacterial parasites which might be used against our insect foes is more recent. You read earlier that serious plant dis- eases are sometimes known to come from other lands. So, too, some of our worst insect pests such as the European corn borer, the Hessian fly, the Japanese beetle, the Mediterranean fruit fly, the brown-tail moth, and many others have come from other countries. They were all imported accidentally. In their native homes they have various enemies, mostly other insects, which keep them in check. In this country those enemies are lacking. W
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Keywords: ., bookcentury1900, bookpublisherbostondcheath, booksubjectbiology
