142 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TaBLE XXI.—Places of entrance of fruit by total larvex for each tree of each plat. Sauga- 
tuck, Mich., 1909—Continued. 
PLAT III. ONE SPRAY. 
Number of larvee for each tree. 
Brood and place of entrance. 
Tree Tree Tree Tree Tree Tree Tree Tree 
224. 225. 232. 236. 237. 238. 239. 244, 
First brood: 
Eb. ec aare eaie URE S r a a Ee 5 ot Paneer 7 |S ea 2 1 3 
1 Ko Ve NESE NAR Nr epee, a ae 86 6 15 24 “i 5 2 31 
Stem oot seen cs cue ee 2 1) eas TB rac ieselakell A hetero | 
Total cock c kaa Jee kee 93 10 15 27 i 7 3 34 
Second brood: 
Gilyp eoSbantobadgosseeccopeaacuack 1 6 1 1 
SIGG seca eon cee em ere biee 356 141 416 370 161 43 75 492 
Stems cscs ese a meeac cancel: |W ibo Oh ash Sobol. seer eey sb eA Sees eee costes fecremesrer 
4 Wo} 2) ee ee eee sh etree = 369 142 422 378 162 44 76 498 
Number of larve for each tree. Per. | Total 
SS IE EE larye ot 
Brood and place of entrance. Total [of larve si 
ree s|) cere) s/s oreo | orepialieybree nae enter- an d 
245. 246. 249, 252. 266. plat ing. | broods. 
First brood: 
Calyee cad asecs suces see cases ase 1 Wl cemesccleseesasc 20 (EC3:i) Seseesas 
‘S} (0 Cys SRI POR TG orale Me ree eee rs 40 13 6 1 9 245 O0F ATG ae eee 
Syicre a): es ie a eae Cae mere ieee see P| ES eS eer uel ast een 6 2521 yeh 
RO taleeme sere terctom alse miccemcse 42 16 7 1 9 QTL os aseeisis eee 
Second brood: 
A Kierra en erste Mel afaterafeteterskctsll| UMMM | ier Sia/aiate Blisters was SOIR eee, 
Side eee oe eoe Wane n i seb en ia 297 176 67 52 131 PIN be IGGRY Mom aeicici 6 
SUSIE Re eee Res i eel atncyore c 1 7 eee eta crcot- UST) Veeereeeat 
NOt e eee eee tee Ne a SIN Sor 319 180 (i 52 DY a ee Al eat 3,118 
A study of the percentages of larve of the respective broods enter- 
ing the calyx, side, and stem ends of the fruit for each plat, as shown 
in Table XXI, presents some points of interest. On all plats a 
greater percentage of larve of the first brood entered at the calyx 
than was true of larve of the second brood. Thus, on the un- 
sprayed plat (I), 85.20 per cent of the first-brood larve entered at 
calyx as against 50.45 per cent of second-brood larve. On Plat I 
(demonstration) 20.95 per cent of first-brood larve entered at calyx 
end as compared with 0.52 per cent of second-brood larve, while on 
Plat III (one spray) 7.38 per cent of first-brood larvee entered at calyx 
and 1.30 per cent of second-brood larve entered at this place. 
Attention should also be called to the ratio of increase of larve 
between the first and second broods. On Plat I (unsprayed) for 
every larva of the first brood there were 1.82 second-brood larve, 
whereas on Plat II (demonstration) and Plat III (one spray) for each 
larva of the first brood there were 7.7 and 10.5, respectively, of the 
second brood. 
