A province-wide eva lua t ion o f the amount, d i s t r i b u t i o n , source and c o n t r o l o f damage t o Ontar io apple t rees was i n i t i a t e d . Data wereobtained from 280 responses t o a quest ionnai re d i s t r i b u t e d t o growers across Ontario, and from t r a p censuses i n three widely separa ted areas. Meadow voles (Microtus pennsyl vani cus) damaged o r dest royed 8,423...

A collaborative trial was conducted to validate the effectiveness of a liquid chromatographic (LC) procedure for determination of patulin in both clear and cloudy apple juices and apple puree. The test portion of clear apple juice was directly extracted with ethyl acetate; cloudy apple juice and apple puree were treated with pectinase enzyme before extraction. After back-extraction into sodium ...

ABSTRACT Systematic studies were conducted to elucidate the role of different soil microbial groups in the development of apple replant disease. Populations of targeted microorganisms were reduced by the application of semiselective biocides and soil pasteurization. Bacteria were not implicated in the disease, because application of the antibiotic chloramphenicol reduced soil populations of bac...

Attraction of adult codling moths, Cydia pomonella (L.) (Lepidoptera: Tortricidae), to sweet baits has been well documented. However, beneficial effects of sugar feeding on moth fitness have not been demonstrated. Longevity, fecundity, and egg fertility were examined for female/male pairs of moths maintained with the following food regimens: water, sucrose water, honey water, apple juice, apple...

BACKGROUND AND AIMS Fruit ripening in Malus× domestica (apple) is controlled by ethylene. Work in model species has shown that following the detection of ethylene, the ETHYLENE INSENSITIVE 3 (EIN3) transcription factor is stabilized, leading to an increase in transcript accumulation of ethylene-responsive genes, such as POLYGALACTURONASE1 (PG1). In the absence of ethylene, the EIN3 BINDING F-bo...

Apple flea weevil, Orchestes pallicornis (Say) was a sporadic pest in the early 1900s and has reemerged as a severe pest of cultivated apple (Malus domestica Borkh.) inMichigan. Organic apple orchards inMichigan have had outbreak population levels of apple flea weevil since 2008 and damage has resulted in up to 90% losses. Apple flea weevil is a small, 2–3-mm black weevil with enlarged high leg...

Phytic acid was added into apple juice at the concentration of 0.1mmol/L, and the effects of phytic acid on antioxidant activities and the contents of vitamin C and polyphenols and antioxidant activities of apple juice were investigated. The result showed as followed. Vitamin C and polyphenols of apple juice decreased during storage time. Adding phytic acid with concentration of 0.1mmol/L might...

Objectives: The goals of this 4-year project were extended gradually from developing alternative apple coatings to three additional goals: (1) Evaluate flavor of major apple varieties using GC and electronic nose during CA storage and simulated marketing for documentation of changes due to storage time, temperature, atmosphere, and 1-MCP pre-treatment (to determine flavor life as opposed to she...

The rainfastness of a microencapsulated sex pheromone formulation for codling moth, Cydia pomonella (L.), was evaluated in a series of laboratory experiments with detached apple, pear, and walnut leaves. Increasing the intensity and duration of simulated rainfall significantly increased the removal of microcapsules from both the top and bottom of apple leaves. The removal of microcapsules was s...