BREEDING RECORDS OF 1906. 1 
. J 
The only one of these tables in which there appears any definite 
progression is the Victoria table, in which there is a regular increase 
of percentage throughout the last half of June. 
FIELD CONDITIONS. 
In order to arrive at an explanation for the obviously irregular 
conditions of parasitism, the figures have also been rearranged 
according to field conditions. It was found that generally hanging 
forms in wooded or cleared country were more highly parasitized 
than those on prairie land. The only definite comparisons which 
could be found were as follows: 
Taste X.—Percentage of parasitism of the boll weevil in forms in woodland and on 
prairie. 
Woodland. Prairie. 
Locality. Date. Hanging| Fallen | Hanging| Fallen 
forms. forms. forms. forms. 
1906. 
Giolla dist rer ssc rac tees ee SeptLeMpeCld asa ee eee ae 11.2 8.2 | 6.0 6.4 
WHC ONS esmcteee ao Slee icicle Sacra soe os | Neptember 192222 ccs---- | 1 Oe eaeseeeee | TANG) |e eee 
Stages in fallen forms on prairie land were found to have a higher 
general percentage of parasitism than those in woodland, although 
the definite case of Goliad gives a different condition. It is only nec- 
essary to quote the highest percentages reached in each condition to 
give support to these statements. 
The highest percentage in hanging forms on woodland was 42.6. 
The highest percentage in fallen forms on woodland was 8.3. 
The highest percentage in hanging forms on prairie was 14.6. 
The highest percentage in fallen forms on prairie was 10.1. 
Considerable contradictory matter was brought out in comparing 
the parasitism in fallen forms in shade and in those exposed to the 
sun. The weight of evidence supports the statement that those fallen 
and exposed to sunlight are more highly parasitized than those which 
fall on moist shaded soil. Only five definite comparisons can be 
presented to show the irregularities which exist. 
TaBLeE XI.—Parasitism of the bobl weevil in fallen forms in sun and shade. 
: Woodland. Prairie. 
Locality. Date. = aor ==> 
Shade. Sun. Shade. | Sun. 
1906. 
Mansfield Ware aces sesso seaeee ND Feg DES) P-L Ue eo en eae 0.54 VOOM | esas =A ee 
Raby lor exe esc eee pee PACS tin Oper eee ene i ery ee SSS nee ite 0. 69 i133} 
print yew ROX. he Se hase ees a ISIS t Sees by eee 2.3 LOT ance ot ene eee 
Wan Web eine SEU ty ee ee ASLO PAO) hs PN cles ci, ee a liaee lle SE ae ary a ma St 6.5 
WictorianiRexs 4. oe seer tat UU ges ey rn me Se eros ye Lee 20%5)|Sae ae 
NVi8LCO, ME OX: tee 5. cine ete gerry. Ale 8 AUSUST AO ec eA ee econ Soe 8.7 GiSiene a2 See WE = See ane emer 
10292—Bul. 73—08——2 
