TABLE 6. "t" values of all comparisons and their significance. Vagility and survival of Diaprepes abbreviatus (L.).
Temperature 75F (23.80C), R.H. 80%.


Host Ta
plant


Biological criteria


ibulated t Degrees
 of
 5% 1% freedom


Calculated "t"
 and
Significance


11. CULTTVArED VS CULrTVATED


1. Total eggs laid in laboratory Orange leaves) 2.36 3.49
 Pigeon pea


Orange leaves) 2.36
Pigeon pea )


2. Duration of oviposition pe-
 riod

3. Average daily oviposition

4. Average duration of incuba-
 tion

5. Number of live births

6. Percent hatch


2. 44*


3.49


Orange leaves) 2.36 3.49
Pigeon pea )


Orange leaves) 2.36
Pigeon pea )


3.49


Orange leaves) 2.36 3.49
Pigeon pea )
Orange leaves) 2.36 3.49
Pigeon pea )


7. Total days lived in laboratory Orange leaves) 2.36 3.46
 Pigeon pea )


2.46-

2.46,

4.33*

2.7 6-


I significant at 5% level Orange: Citrus sinensis Osbeck Pigeon pea: Ca anus indicus L.






 TABLE 7. Biological criteria (fecundity, oviposition, incubation, hatching success, longevity) related to the sweet potato
 weevil Cylasformicarius on sweet potato (Ipomea batatas [Lam.]).




 1 2' 3 4 5 7' 9 '10 '11 '12 '13 '14


1. Fotal eggs laid in the
 laboratory
2. Average duration of ovi-
 position period
3. Fotal days lived in labo-
 ratory:
 Females
 Males


I 1 1


54 19 19


'253' '177' 253' 177253'253'127'253'253'177'223'253'253'
'253' 253'253'177' '253'253'127'253'127'253'253'177'253'


References
 1. Alfieri, S.A.,Jr. 1972. Status report on the sugarcane rootstalk borer weevil.
Citrus Ind. 2:11, 30.
 2. Beavers,J.B., and A. G. Selhime. 1975. Population dynamics of Diaprepes
abbreviatus L. in an isolated citrus grove in central Florida. J. Econom. Entomol.
69:9-10.
 3. Beavers, J.B., R.E. Woodruff, S.A. Lovestrand, and W.J. Schroeder. 1979.
Bibliography of the sugarcane rootstalk borer weevil, Diaparepes abbreviatus. ESA
Bulletin: Vol 25, No.1.
 4. Bonnefil, L. 1971. Biological interactions ofEmoascaphaseola Oman with
selected leguminous hosts. Ph.D. thesis. Dis. Abst.
 5. Domey, I. 1979. Push to bar "vaquita" from U.S. poses no problem for
island plant exports. The San Juan Star, Tuesday, May 29.


VOL. XX-PROCEEDINGS of the CARIBBEAN FOOD CROPS SOCIETY


 6. Norman, P.A.'et al. 1974. Feeding damage to five citrus rootstalks by larvae
of Diaprepes abbreviatus (Coleoptera, Curculionidae) Fla. Entomol. 57:296.
 7. Price, P.W. 1975. Insect Ecology. Wiley Inter-Science Publication. John
Wiley and Sons, New York.
 8. Simmonds, F.J. 1953. Insect pests of sugarcane in the French Antilles. Top.
Agric. 30:122-7.
 9. Schesler, W.C. 1980. Statistics for the biological sciences, second edition.
Addison Wesley Publishing Co., Buffalo, NY.
 10. Wolcott, G.N. 1936. The life history of Diaprepes abbreviatus at Rio
Piedras, P.R. J. Dept. Agric. P.R. 17(3):265-270.
 11. Woodruff, R.E. 1964. A Puerto Rican weevil new to the United States (Col-
eoptera, Curculionidae). Fla. Dept. Agric., Div. Plant and Entomol. Circ. 30:1-12.


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