Bug Vs. Bug: Nature's Method of Controlling Injurious Species
The book Bug Vs. Bug: Nature's Method of Controlling Injurious Species was written by author California State Commission of Horticulture Here you can read free online of Bug Vs. Bug: Nature's Method of Controlling Injurious Species book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Bug Vs. Bug: Nature's Method of Controlling Injurious Species a good or bad book?
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When about to change to the chrysalis, they hide away under cobwebs, dry leaves, and other debris. The beetle is metallic black, with a brown thorax. They feed on Aspidiotus perni- ciosus, Chrysomphalus (Aspidiotus) aurantii, Chrysomphalus (Aspidio- tus) citrinus, Aspidiotus hederae (nerii), and occasionally on aphis. In San Diego County it is proving effective on purple scale (Lepidosa- phes beckii) . In alluding to the excellent work of this little beetle on the purple scale in the above name...d county, Mr. Allen, of Bonita, writes : With us the largest hatch of purple scale has usually been in May. So far this year I have not seen a single instance of purple scale hatching, nor can I find any live scale in an orchard adjoining us, every tree of which a year ago was literally alive with them. Since last July this orchard has been to my knowledge thoroughly stocked with the Scymnus, though when they first entered it I can not say. As they undoubtedly came in large numbers their work has been rapid.
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