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    26 Bullctm No. 133. .
  . Lantern Traps for Codling Moth.
-·? we `i;*"’i3 · . .
 tg l Tra s have been so ersistentl advocated and advertised b _ _
ta     ¤f;·¤‘.   ‘ . . . . ‘
3··_,.-.5   gi, people interested rn the1r manufacture that many good fruit grow-
  ers have become convinced of their value as a means of lessening ·
r> `¢?·?*‘ '¢;.i—:-. Q'- . . . . r
  codlrng moth injuries. But to any one who has had much expe-
;   rience as an entomologist, it seems at once very improbable that
r',_   . they will be attracted in numbers sufficient to justify the ex-
g_¥;§L‘Z"I  ense and time re uired to catch them b such means. I have seen _
VIZ i..:'·`:’·i - ··sr . y '
    i in use such traps, consrstmg of a tin can with simple exposed wick,
  l and tin reflectors, placed over a bucket of water with oil on the
  5 surface, and can testify that they will at times draw and destroy
  ··?   ;:;v`i§‘§ ,   . . . .
  L · man insects. But when these insects were examined it was
  ‘·:¤{.z.  l ’
  impossible to say that codling moths had been captured at all, be-
  cause of the condition in which the oil and water left the insects,
  and it was plain, from the size and other characters determinable,
  .3 a .° .
  that more than 99 per cent. of the insects were certainly not cod-
v.;as;—%>j· ‘``‘ ”f?  ‘ . .
    ling moth. Seine of these traps were tried by myself, finally, on
  1 my own place and on the College Campus, without getting results
 `  Q that were at all satisfactory. It was finally decided to use a trap
.-:2.*%- .,_-an  -3: , . “ . . . . .
    T that would capture the insects wrthout injuring them, and an ordi-
  .;f*£‘1...T     r - -
 ·    nary 16-candle incandescent electric lamp was suspended at one
  si 6  »  ~ · - .
  ···.   4 a end of the Vivarium under which was placed a trap made after a
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    l . . . ’ .
 fg    - description publ1shed some years ago by Professor C. P. Gillette,
    y of Colorado. About one hundred feet away were large apple trees,
  e  T and the conditions seemed in every way good to test the question V
  · ar-£f,_'·¢a.   { . . ` T
*“     as to whether a light could be de aended u Jon to ca ture the adult
r,_?f_   s ie e. l P
  codhng moth. Large numhcrs of moths, beetles, and bugs (Leaf-
*"    . ho J Jers—Jassidac—were es Jeciall r numeorus. were ca utured from
E3;.  gr,.   l l 5 l
  July 15 to September 1. but on only three occasions  July 20,
.__.e, 3-.*,;    ~ . ` · U I . . l
  r Bol,-.2%, and 34) were codhng moth captured; in all but hve speci-
s   .*i?3;. ."-.  Q . " . ’.
  r mens. It is to be remembered that this was a much better light
V ‘lJF?¥·ZsQt’Zf {1,.*;, Y . . . .
  ; and lantern than would be avarlable for the fruit grower, and rf,
 $2 r under such very favorable conditions, so few moths were captured,
· ». ":fs`¥:j*`  ". ` · · · · ‘
   .-;-1 it is reasonable to suppose that very few indeed would be attracted
  by the imperfect traps generally employed. The following record
  _··, yy. § was made by Nr. E. P. Taylor. the assistant in charge of the trap:
=3$Li§*=E5"   Qsl F Z
$7 "·"§€f`T$=—°    
£&‘i‘·~’P3:-- =` `.‘ J-   ..`‘ *
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