. Report of the State Entomologist of Connecticut for the year ... . ndard lead arsenate-wettable sulfur pro-gram. Absence of severe mite injury was probably responsible. Acquisition of a new sprayer and truck greatly facilitated movementfrom place to place and tests were conducted in three out-lying orchards in-cluding the Plumb orchard in Westwoods, Hamden. A Niagara duster con-verted into a mist blower was placed at our disposal and used in the Burtonorchard. Tests with it appeared promising inasmuch as complete control ofinsects and diseases was obtained with concentrates and a reduced num
. Report of the State Entomologist of Connecticut for the year ... . ndard lead arsenate-wettable sulfur pro-gram. Absence of severe mite injury was probably responsible. Acquisition of a new sprayer and truck greatly facilitated movementfrom place to place and tests were conducted in three out-lying orchards in-cluding the Plumb orchard in Westwoods, Hamden. A Niagara duster con-verted into a mist blower was placed at our disposal and used in the Burtonorchard. Tests with it appeared promising inasmuch as complete control ofinsects and diseases was obtained with concentrates and a reduced number ofapplications. The main difficulty encountered so far has been trouble with thenozzles which clog frequently. Remedy of this should not be difficult. Trialsof spreader nozzles for attachment to the end of the duster delivery tube ap-peared to offer advantages for uniform coverage. With dusts, alone, thesewere definitely better than the straight single tube. Advantages of the mistblower, if it continues to handle insects and diseases successfully, lie in a re-. Figure 8. Type of mist blower used in orchard experiments. 70 duction in the number of sprays necessary, less water cartage, and lower re-moval of previous spray deposits. There is considerable danger of excessiveresidues on the fruit unless care is taken to prevent it, and the nozzles usedwill of necessity have to be so constructed that they will deliver thick heavymixtures with a minimum of trouble from clogging. Experiments with Reduced SchedulesBurton Orchard Results of tests in the Burton Orchard are given in Tables 27 and after sampling and examination of the fruit, the following notes andconclusions give an idea of the results obtained. Mcintosh. A considerable amount of red mite damage was noted in thesulfur plots. Tersan (50 per cent tetra methyl thiuram disulfide) producedfruit of excellent quality and color but considerable roughness was observedin all Fermate plots, mainly enlarged lenticels. Some
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