Title: Insecticide screening program for catfacing insects on peaches - 1973
CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00076547/00001
 Material Information
Title: Insecticide screening program for catfacing insects on peaches - 1973
Physical Description: Book
Creator: Fluker, Sam S.
Publisher: Agricultural Research Center, IFAS, University of Florida
 Record Information
Bibliographic ID: UF00076547
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 153975237

Full Text


100-
'7 -


There were 7 insecticides used for this test. The materials

used without approved common names are:

Phosvel 0-(2,5-Dichloro-4-bromophenyl)
0-methylphenylthiophosphate

Imidan 0,0-dimethyl S-phthalimidomethyl
phosphorodithioate

Zectran 4-dimethylamino-3,5-xylyl
methylcarbamate
(R)
The materials were applied to the trees using a Solo ,

Model 423, Mistblower. The test materials were mixed for and

applied at a 24x concentration. Each tree received 10 oz. of

formulated material during each application. BenlateR

benomyll fungicide) was used throughout the test period as

protection against various diseases. Table 1 lists the dates

and rates that the various materials were applied.

Samples consisted of inspecting each fruit from every tree

and recording its condition, either insect damaged or undamaged.


AGRICULTURAL RESEARCH CENTER, NOTICEELO

Monticello, Florida I-.

Monticello ARC Research Report BB 1973-2 August 1, 1973


INSECTICIDE SCREENING PROGRAM .
FOR CATFACING INSECTS ON PEACHES 1973

Sam S. Fluker
Assistant Entomologist :


For this program 288 peach trees of the Rio Grande variety

were selected for testing. The trees were 6 years old and in

their 4th fruiting season. They are located at the Peaches of

Florida Orchard in Madison County and are part of an orchard

that has been maintained as a commercial enterprise since plant-

ing.


:, i
i.


~-J~ i


I~~
1d. ~
S







-2-


The results of the tests are shown in Table 2. Of the insect-

icides tested Phosvel, Parathion (applied every 7 days), en-

capsulated methyl parathion (applied every 21 days), and

endosulfan gave significantly better control than the other

insecticides. However, parathion when applied every 7 days

induced severe phytotoxicity to the trees. None of the other

materials tested were phytotoxic. Endosulfan was applied to the

trees only 2 times which is according to its registration on

peaches.

The test trees as a whole had considerably less insect

damage this year as compared to 1972. The lack of insect damage

this year is attributed to the low temperatures that occurred

* in March and the extremely heavy rains that occurred in March,

April, and May.

The results of this screening program indicate that with

proper timing a grower can apply as little as two applications

of an insecticide and achieve excellent insect control. The

data of Table 2 indicates that significant differences exist in

the effectiveness of the materials in this test. However, the

data clearly shows a significant difference in effectiveness

between all test materials and the check trees which received

only Benlate during this program.


I


c (







-3-


TABLE 1.


Dates and rate at which the
material was applied, 1973.


formulated


Form-
ulation


Material


Oz. A.I./
100 cals.


Dates App~lied


*hsate Marchl5,e19


March 5, 19
April 30
May 21


Parathion
(7 day interval)


Methyl Parathion
(14 day interval)


Endosulfan


March 5, 12, 19, 26
April 2, 9, 16, 23, 30
May 7, 21


March 5,
April 2,
May 14

March 5
April 30


Misible


19
16, 30


Imidan 70%


Methomyl



Parathion
(14 day interval)


*M. Parathion


March 3, 19
April 30
May 21

March 5, 19
April 30
May 21

March 5, 19
April 2, 16,
May 14

March 5, 19
April 30
May 21

March 5, 19
April 30
May 21

March 5, 26
April 16
May 7, 21

March 5, 19
April 30
May 21

March 5, 19,
May 21, 29


Zectran


*M. Parathion
(21 day interval)


Imidan 50%


Benlate


* Encapsulated


Phosvel







-4-


TABLE 2. Effectiveness of seven insecticides against the
catfacing insects of peaches. Peaches of Florida
Orchard, Madison County, Florida, 1973.


Material

Phosvel

Parathion (7 day interval)

Methyl Parathion (21 day interval)(2)

Endosulfan

Imidan 70% WP

Methomyl

Parathion (14 day interval)

Methyl Parathion

Zectran

Methyl Parathion (14 day interval)(2)

Imidan 50% WP

Check


Mean (%) fruit wi
insect injury-"

0.239a

0.258a

0.425a

0.442a

0.699ab

0.912ab

1.032ab

1.915abc

2.770bc

3.664c

4.016c

9.324d


(1)Materials which are not significantly different at the 1%
level are followed by the same letter, according to Duncan's
test.
(2)
Encapsulated








200 cc
August 15, 1973


I I


. W




University of Florida Home Page
© 2004 - 2010 University of Florida George A. Smathers Libraries.
All rights reserved.

Acceptable Use, Copyright, and Disclaimer Statement
Last updated October 10, 2010 - - mvs