. Bulletin. Agriculture; Agriculture -- Arizona. Fig. 19—Effects of plant bug attack on cotton bolls. 1, Boll with shrivelled lock. 2. 3. 4 and 5. Small bolls, stunted and decayed as a result of plant bus at- tack 6, Immature cotton boll broken open to show decayed condition of locks as result of plant bug attack. 7, Same with lint and seeds removed to show prolifera- tion or abnormal wartlike growth on insides of carpels produced by plant bug- punctures. any extent upon the cotton plants. It is quite likely that it multi- plies principally on wild food plants and migrates to the cotton plants
. Bulletin. Agriculture; Agriculture -- Arizona. Fig. 19—Effects of plant bug attack on cotton bolls. 1, Boll with shrivelled lock. 2. 3. 4 and 5. Small bolls, stunted and decayed as a result of plant bus at- tack 6, Immature cotton boll broken open to show decayed condition of locks as result of plant bug attack. 7, Same with lint and seeds removed to show prolifera- tion or abnormal wartlike growth on insides of carpels produced by plant bug- punctures. any extent upon the cotton plants. It is quite likely that it multi- plies principally on wild food plants and migrates to the cotton plants when these wild food plants become overstocked with the insects or, in the case of annuals, reach maturity and die. The brown cotton bug is rarely found in sufficient numbers to require treatment except m small areas. Judging from observations made on related species each adult of the brown cotton bug is capable of destroying a large number of bolls. An average of one of these bugs to a plant should be considered as threatening very noticeable. 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 University of Arizona. Agricultural Experiment Station. Tucson : Agricultural Experiment Station, University of Arizona
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Keywords: ., bookauth, bookcentury1800, bookdecade1890, booksubjectagriculture
