. Fungoid and insect pests of the farm. Agricultural pests. vni] Introduction to Insects 91 insects may be derived from putrefying matter may easily be shown to be wrong by keeping such material as putrefying meat so that insects cannot get near it. If however the meat is kept so that insects can reach it,. Kg. 28. A cabbage leaf bearing the cocoons of an ichneumon wasp. (These cocoons are falsely called caterpillars' eggs.) they will lay their eggs there, and from these maggots will be formed, and eventually flies. The passage through these changes from the time they are laid as eggs until th


. Fungoid and insect pests of the farm. Agricultural pests. vni] Introduction to Insects 91 insects may be derived from putrefying matter may easily be shown to be wrong by keeping such material as putrefying meat so that insects cannot get near it. If however the meat is kept so that insects can reach it,. Kg. 28. A cabbage leaf bearing the cocoons of an ichneumon wasp. (These cocoons are falsely called caterpillars' eggs.) they will lay their eggs there, and from these maggots will be formed, and eventually flies. The passage through these changes from the time they are laid as eggs until they become winged forms is known as the transformation or metamorphosis of insects. Three different stages of metamorphosis are found in all butterflies and moths and also in a large number of other Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Petherbridge, Frederick Robert. Cambridge : University Press


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Keywords: ., bookcentury1900, bookdecade1910, bookpublishercambr, bookyear1916