. Agriculture for beginners. the cotton squares, and generally onlyone to the square. By andby, when the unusedsquares become scarce,eggs are deposited in thebolls. Sometimes two orthree eggs are laid in eachboll. The mother beetlewith her snout eats a holeFig. 260. Pupa from above and into the boll, pushes theBELOW. (Greatly enlarged) gggg jn^ ^nd then stopS the After Sanderson, Bulletin of Texas ^qIc with the picceS eaten Experiment Station _,, . - , , out. 1 he juice of the plantglues in the loose pieces and soon a warty-looking spotmarks the place of the egg. The young grub hatchesin two o
. Agriculture for beginners. the cotton squares, and generally onlyone to the square. By andby, when the unusedsquares become scarce,eggs are deposited in thebolls. Sometimes two orthree eggs are laid in eachboll. The mother beetlewith her snout eats a holeFig. 260. Pupa from above and into the boll, pushes theBELOW. (Greatly enlarged) gggg jn^ ^nd then stopS the After Sanderson, Bulletin of Texas ^qIc with the picceS eaten Experiment Station _,, . - , , out. 1 he juice of the plantglues in the loose pieces and soon a warty-looking spotmarks the place of the egg. The young grub hatchesin two or three daysfrom the egg. In itsentirely protected home,the newly hatched grubeats the square and itsoon falls to the fields may attimes be seen withouta single square on thecotton plants. In from one to twoweeks, the grub or larva The Larva of Cotton-Boli., r n Weevil in a Squarebecomes fully grown ,, ^ ^ ° After an original furnished by United States and transforms to the Department of Agriculture. ^Id 302 AGRICULTURE FOR BEGINNERS pupa state without changing its home. Then in about aweek more the pupae come out as adult weevils and attackthe bolls. They puncture them with their snouts and laytheir eggs in the bolls. The young grubs, this time hatch-ing out in the boll, remain there until grown, when theyemerge through holes that they make. These holes allow dampness to enter anddestroy the bolls. Thislife round continues untilcold weather drives theinsect to winter that time they haveincreased so rapidly thatthere is often one forevery boll in the field. This weevil is provingvery hard to plant pests whenthey are grown or whenthey are in the larva statecan be killed by the appli-cation of poisons. But asthe grown weevil is atough, hard-shelled insect,neither internal nor exter-Moreover, as the larvae livein the cotton boll, poison cannot reach them ; hence itseems that no poison can be relied upon to exterminatethis pest. Mach
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