Rotenone reduced in dusts for cattle grub treatments


Material Information

Rotenone reduced in dusts for cattle grub treatments
Physical Description:
1 p. : ; 27 cm.
United States -- Bureau of Entomology and Plant Quarantine
Bureau of Entomology and Plant Quarantine and Bureau of Animal Husbandry
Place of Publication:
Publication Date:


Subjects / Keywords:
Warble flies -- Control   ( lcsh )
Cattle -- Diseases and pests -- Control   ( lcsh )
Rotenone   ( lcsh )
federal government publication   ( marcgt )
non-fiction   ( marcgt )


General Note:
Caption title.
General Note:
"E-602 ; September 1943."
General Note:

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 030292506
oclc - 780067037
System ID:

Full Text
September 19143 s-60?

United States Depart'ent of Agriculture
Agricultural research Adninistration
Bureau of Znto'mology and Plant (iarantine
Bureau of Animal Industry


Treatments of cattle made for control of cattle grubs show that rotenone
Aunts mixed with trinoli earth or with oyrophyllite are more efficient than
those made with talc and sulfur, because they penetrate the hair better and
also because twice as many animals or -.ore cqn be treated with the same
amount of derrie. The results obtained with these dust mixtures in W-'oning
Were comparable to those obtained in T.;xrs and Florida. They show that the
northern animals with thick coats of hnir are treated just as effectively Ps
are the animals with short hnir. It wAs alsr found that fixtures of ground
cube were as effective as those :ndr' wit- ground derris root whan the dusts
contained the same pcrcentnge of rot-nonr.

When applied with a shJ.kc.r can, an nv-rie nvplication of 2 to 3 ounces
of the mixed powder is sufficient for sir-le treat-ent of an ini-al with a
heavy coat of hair. The ctn or j;tr is provide with clos,--fittine_ top in
which about 15 holps, one-fourth inch in Hi..-:t7.r, nr' wounchpd outw-r.i
through the lid. At th- tine thj dust is appli-'d, oni h-in is usR.- to ruffle
the hair. This permits thi dust to nen.'trnte the hair nnd -nt--r th'- ovmirnps
of the cysts that contain the grubs. Thn succ-es of th. trrrtnent is derendenr.t
upon the thoroughness with which thn powder is work'.i irnto the hnir, In the
use of such a method two men working on ODsitt' sint s of a chute- h.rve
treated 100 cattle in an hour. B-c-us.- of thp excpllent re'suits obt'ine.l
With pyrophyllite and tripoli -Firth ns dry diluents, either of thrse r,'terials
Is recommended for use in dusts for cnttle erub control nn? as n n-ans of
greatly ext-nding the use of the avanilrble rotenonr,

Pormula for Making Dusts with Pyrophyllite or Tripoli E-irtn

Ground cubA or 4erris (5 percent rotnronet).. , , 1 D-irt by wi,-ht
Tripoli earth I_ (200-mesh finneness). . . . . 3 parts b; wei,-ht
Ground cube or derris (5 percent rotrn-nc). . . . 1 part by, weight
Pyrophyllite J/ (325-mesh finennes) . . . . tarts by vwi.i-ht

SThe tripoli enrth to bp umed is thrt known -'s tr~nl-r' --ubl.-rr'un ro e

-/ The pyrophyllito found sntiefnct-ry is th'.t c-n-,rcinli :.., c.'wr, P,'s rrx A3B.

3II lI I I 6 iiJr 0 i'i2 1 I3

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