02252nam a2200265 a 450000100080000000500110000800800410001910000170006024501200007726000400019730000100023750000240024752015450027165000150181665000160183165000140184765000260186165000160188765000140190365000090191765300160192665300170194265300150195965300120197414591382006-06-01       1979    bl uuuu  m   00u1 u    #d1 aMOSCARDI, F.  aEffect of soybean crop phenology on development, leaf consumption, and oviposition of Anticarsia gemmatalis Hubner.  a[S.l.]: University of Floridac1979  a138p.  aPh.D. Dissertation.  aEffects of soybean, Glycine max (L.) Merrill, phenology on leaf consumption, development, and oviposition of the velvetbean caterpillar, Anticarsia gemmatalis Hubner, was investigated on excised leaflets from five successive stages of 'Bragg' soybean. Phenological stages were designated as early vegetative (V2 - V5), late vegetative (V5 - V8), flowering (R1 - R2), pod set - pod fill (R4 - R6), and senescent (R7 - R8). Mean fresh weight consumed by fourth and fifth instar larvae was higher on early than late stages. Trends in mean dry weight consumed did not agree with mean fresh weight consumed due to increases in percent dry matter in individual leaflets as the season progressed. Estimations of leaf area consumed, using bi-weekly ratios of fresh or dry weightto leaf area for 40 unfed leaflets and extrapolating based on fresh or dry weight consumed, proved unreliable under the conditions of the experiment. Mean larval developmental time varied from 12.64 days on late vegetative to 14.28 days on senescent leaflets. Time from pupa to adult varied from 8.89 to 9.38 days for pod set - pod fill and flowering stage, respectively. Egg hatch to adult varied from 21.87 days on late vegetative to 23.44 days on senescent stage. Larvae fed on senescent stage leaflets produced pupae with reduced weight; however, pupal weight generally was not correlated with consumption and fecundity. Mean fecundity followed a general trend of higher fecundity at early than late plant eggs. Females resulting from larvae feeding on the first ...  aentomology  aoviposition  aphenology  aAnticarsia Gemmatalis  aEntomologia  aFenologia  aSoja  aInsect pest  aInseto praga  aOviposicao  aSoybean