NATURAL ENEMIES. 1389 
Taste LXXIX.—Number of egg and feeding punctures and percentage of injury to 
apples, including drop fruit and fruit from tree, various localities, for seasons 1908 
and 1909—Continued. 
Feed- Total | Aver- 
as Egg Sti : age per- 
Localities. Variety. Date. Pree pune- ae Injured ikea centage 
: No. tures, | Punc- fruit. | ber of r 
| ures. | tures fruit of fruit 
4 | * linjured. 
eee & 
Westfield, N. Y...... Baldiwinic ss vee 23 Season 1908. 1 139 52 181 748 
Osean fe cee ites. GOs cece eee | Season 1908. 2 169 140 298 1,518 
liek ae Se eee eee Co Ea ee aS Season 1908. 3 119 62 283 SSL 
1D) Sah aes Re CES? eee Season 1908. 4 147 65 212} 1,100 
Te epee ne eee (6 Lo ea | Season 1908. 5 191 121 286 838 
eel ana Wallen oes Son ee Pos l| wnoceneacceect one se 765 440 | 1,260] 5,085 24.77 
age per cent 
of injury. 
Grozet. Vaa-- <..=--- - Yellow Newtown.; Season 1909. 1 1, 670 1, 076 UGGS || Bie BS 
lO 23 Bape See re Gores ectc aces Season 1909. 2h G27 944 1571] 35682 
GR ene Sone ol 5. Coe aes eee Season 1909. 3 479 226 437 816 
ID GE 3 eee See Gores 95-258: Season 1909. 4 631 331 531 | 1,016 
Des Se ees aie Cy See ee | Season 1909. Bele 4191) TOvt 1,415) |) 35100 
DDL 5.5. a eee Se Ol Ee eae ata Season 1909. 6 | 1,068 871} 1,193 | 2,988 
DYGE -'s 2 eet J COee ones Season 1909. 7 1, 433 865 1, 285 2,091 
LD sues SS a ees Ors sae ee Season 1909. 8 aby 695 1,098 | 1,980 
LN OLAS TING NES Cc) ce MRE ne eee el | teen rn | | So 9,497 | 6,079 | 8,785 | 19,107 45.97 
age per cent 
of injury. 
Fisherville, Va....... NWanesapia ss 4-5 - Season 1909. 1| 1,326 536 | 1,350 | 4, 463 
1D 2 5 at As See Ne tas CGE oer Season 1909. 2 WPal 389 799 | 3,134 
DSP es oe eee Meee Gost tee eee Season 1909. 3 1,718 518 1,378 | 3,537 
IDE age meee eee eee Ons a. esac Season 1909. 4] 1,573 378 | 1,420] 4,055 
IDs 3 SE ee ee ee Coreen aa Season 1909. 5 | 2,793 795 |. 2,307 | 5,892 
100)... 2os See ee ee ee COs es Cee Season 1909. 6| 1,019 206 803 | 2,244 
Sree UP Tad) Se eee feos oral Seer c ce coke ee leat aca 9,156 | 2,822] 8,057 | 23,325 34.53 
age per cent ; 
of injury. 
Mount Jackson, Va...} Ben Davis.......- Season 1909. To) DLS a 2S 217, 35186) || 3;,926 
ID! oo ee oe ee eae GO Bop eee Season 1909. 2) 3,545 952 | 2,226} 3,109 
LDS Sao eee | Se Gow tae ASeaee Season 1909. 3] 1,703 509 | 1,079] 1,840 
DTS Asser ee eee) Se ee G10): Sapa Geneee Season 1909. 4) 2,179 709} 1,226] 1,508 
ID OSS 2s aS eer ees Gon Saat Season 1909. 5 | 3,723 | 1,307} 2,399] 3,189 
Thos OSs See ed eae (ky: Aree ee see Season 1909. 6| 4,113 | 2,009} 2,823] 4,153 
LDS. Sees ne ee COPE ee eee Season 1909. Ze || BOGE) GAPART | Seioill | agate 
1S eae ee | ae Gowan 5s. 2. a Season 1909. 8,785 |} 1,199 | 2,107} 2,795 
Sirip aneurin een eae ey oe ee ill! ccs cle 29,708 | 12,140 | 18,657 | 25,641 72. 72 
age per cent 
of injury. 
The injury indicated for apples ranges from 93.88 to 24.77 per cent 
of the total crop, both dropped and picked fruit. It is not to be 
inferred that the figures indicate the actual amount of fruit lost 
from curculio attack, since in many instances in the case of fruit from 
trees there would be but a single feeding puncture, or an old egg sear, 
largely outgrown. Such specimens, while unfit for fancy market 
fruit, would possess considerable value. 
NATURAL ENEMIES. 
There are many factors which taken collectively exert an important 
influence on the numbers of the curculio, as unfavorable conditions 
during the winter, drought during pupal period and time of emergence 
of beetles from the soil, scarcity of fruit for oviposition due to frosts 
or other causes, and the influence of parasitic and predaceous enemies 
and disease. Notwithstanding all of these, the insect is able to main- 
