PRELIMINARY ORCHARD TESTS ON CONTROL OF CODLING MOTH LARVAE BY A GRANULOSIS VIRUS

1977 ◽  
Vol 109 (8) ◽  
pp. 1079-1081 ◽  
Author(s):  
R. P. Jaques ◽  
C. R. MacLellan ◽  
K. H. Sanford ◽  
M. D. Proverbs ◽  
E. A. C. Hagley

AbstractApple orchard tests in 1974, 1975, and 1976 showed that applications of granulosis virus reduced deep-entry damage by larvae of the codling moth, Laspeyresia pomonella (L.), to apple fruit at harvest by 55 to 96% compared with damage to fruit on nontreated check trees. Sting or shallow-entry injury was usually higher on virus-sprayed trees than on check trees presumably because larvae were killed by the virus soon after entry into the apple.

Entomophaga ◽  
1981 ◽  
Vol 26 (2) ◽  
pp. 111-117 ◽  
Author(s):  
R. P. Jaques ◽  
J. E. Laing ◽  
C. R. MacLellan ◽  
M. D. Proverbs ◽  
K. H. Sanford ◽  
...  

1975 ◽  
Vol 107 (12) ◽  
pp. 1265-1269 ◽  
Author(s):  
M. D. Proverbs ◽  
D. M. Logan ◽  
J. R. Newton

AbstractCodling moth, Laspeyresia pomonella (L.), injury in a 14-ha apple orchard gradually increased in 1973 and 1974 despite the presence of 480 sex pheromone traps (1 mg trans-8, trans-10, dodecadien-1-ol per trap). Percentage injured fruit at harvest was 0.00075, 0.0062, and 0,033 in 1972, 1973, and 1974, respectively. Numbers of wild male moths trapped increased from 3e in 1973 to 64 in 1974.


1978 ◽  
Vol 110 (10) ◽  
pp. 1095-1102 ◽  
Author(s):  
M.D. Proverbs ◽  
J.R. Newton ◽  
D.M. Logan

AbstractBecause laboratory and field cage experiments had shown that partially sterile (25 krad dose) male codling moths were sexually more competitive than sterile (40 krad) ones, a study was made in a British Columbia orchard in 1970 to determine whether release of 25 krad moths of mixed sexes would suppress this pest more effectively than release of 40 krad moths. Approximately 75,000 moths/ha were released from 24 April to 25 September for each dose level. In the 25 krad moth release plot, the percentage of apple fruits damaged by this pest at harvest was reduced from 0.21 in 1969 to 0.08 in 1970, whereas in the 40 krad plot damage was reduced from 0.04 in 1969 to 0.02 in 1970.Release of 25 krad moths was also compared with insecticide sprays for codling moth suppression in two small areas at Cawston and Olalla, B.C. At Cawston, the percentage of apples damaged at harvest was reduced from 1.0 in 1969, after three sprays of phosalone, to 0.1 in 1970 after release of irradiated insects. In contrast, per cent damage in a nearby apple orchard, sprayed twice with azinphos-methyl in 1969 and 1970, increased from 2.0 in 1969 to 8.1 in 1970. At Olalla, per cent damage was about the same (0.5) in 1969, after three phosalone sprays, as in 1970 (0.6) after release of irradiated insects. In a neighboring apple orchard, sprayed twice with phosalone in 1969 and 1970, per cent damage was about the same (1.0–1.2) each year.


1996 ◽  
Vol 11 (1) ◽  
pp. 39-47 ◽  
Author(s):  
M. Sean Clark ◽  
Stuart H. Gage

AbstractWe evaluated the effects of free-range chickens and geese on insect pests and weeds in an experimental, nonchemical agroecosystem consisting of an apple orchard with intercropped potatoes. The objective was to assess the potential of these domestic bird species as biological control agents. Four insect pests were studied: plum curculio, apple maggot, Japanese beetle, and Colorado potato beetle. Chickens fed on several potential crop pests, including Japanese beetle. Although Japanese beetles were less abundant on apple trees when chickens were present, the proportion of damaged fruit was not reduced. Furthermore, chickens did not affect weed abundance or crop productivity. In contrast, geese were effective weeders. Their activities reduced weed abundance and increased potato plant growth and yields compared with a minimally weeded control. In addition, the activities of geese indirectly reduced apple fruit damage by plum curculio and increased the proportion of pest-free fruit, possibly because removal of vegetation by the geese reduced humidity at the soil surface and therefore reduced the activity of plum curculio.


Author(s):  

Abstract A new distribution map is provided for Cydia pomonella (L.) (Carpocapsa pomonella[Cydia pomonella] L., Laspeyresia pomonella[Cydia pomonella] L.) (Lep., Tortricidae) (Codling Moth). Host Plants: Apple, pear, peach, quince, Prunus spp., walnut. Information is given on the geographical distribution in EUROPE (excl. USSR), Austria, Azores, Belgium, Britain, Bulgaria, Czechoslovakia, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Malta, Netherlands, Norway, Poland, Portugal, Romania, Sardinia, Sicily, Spain, Sweden, Switzerland, Yugoslavia, ASIA (excl. USSR), Afghanistan, China, Cyprus, India, Iran, Iraq, Israel, Jammu and Kashmir, Jordan, Korea, Lebanon, Pakistan, Syria, Turkey, USSR, AFRICA, Algeria, Canary Islands, Libya, Madeira, Mauritius, Morocco, South Africa, Tunisia, AUSTRALASIA and PACIFIC ISLANDS, Australia, New Zealand, NORTH AMERICA, Canada, U.S.A., SOUTH AMERICA, Argentina, Bolivia, Brazil, Chile, Colombia, Peru, Uruguay.


1994 ◽  
Vol 19 (1) ◽  
pp. 351-351
Author(s):  
J. Steven Tebbets ◽  
Patrick V. Vail ◽  
Harold H. Toba

1974 ◽  
Vol 106 (9) ◽  
pp. 917-920 ◽  
Author(s):  
C. V. G. Morgan ◽  
A. P. Gaunce ◽  
C. Jong

AbstractAll codling moth larvae, Laspeyresia pomonella (L.), in 100,000 infested apples were killed by fumigation with 32 g/m3 methyl bromide for 2 h at about 17 °C followed by 31–35 days of storage at −0.5 °C. The apples were harvested into bins, fumigated, and placed in a standard cold storage room of a grower’s packinghouse as would be done under commercial conditions. Standard cold storage killed all first and second, and some third, instar larvae in nonfumigated fruit. Cursory sampling indicated that fumigation alone, without subsequent cold storage, could kill all stages. The fumigation and storage treatment did not injure Red Delicious, Golden Delicious, Spartan, Jonathan, or Newtown apples.


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