Influence of oxyluorefen on weed control and growth of fruit-bearing of apple trees

2012 ◽  
Vol 56 ◽  
pp. 132-138
Author(s):  
Nina Gerasimova
Keyword(s):  
Weed Control ◽  
Apple Trees

EFFECTS OF A ROTATION OF SIMAZINE, TERBACIL, AND DICHLOBENIL IN A MATURE APPLE ORCHARD

1981 ◽  
Vol 61 (2) ◽  
pp. 407-411 ◽  
Author(s):  
H. B. HEENEY ◽  
V. WARREN ◽  
S. U. KHAN
Keyword(s):  
Weed Control ◽  
Apple Orchard ◽  
Common Vetch ◽  
Apple Trees ◽  
Tert Butyl ◽  
Nutrient Levels ◽  
Control Growth ◽  
Vicia Cracca ◽  
Mature Apple

Annual yields of mature Kinkead Red Spy apple trees were higher when growth under trees was controlled by a rotation of three herbicides, namely, simazine (2-chloro-4, 6 bis(ethylamino)-s-triazine), terbacil (3-tert-butyl-5-chloro-6-methyluracil) and dichlobenil (2,6-dichlorobenzonitrile) compared to yields of trees in which sod was regularly mowed to control growth of weeds. While weed control with herbicide rotations was not as effective as with continuous usage of a single herbicide, it was commercially acceptable, and the problem of common vetch (Vicia cracca L.) as on escape weed, particularly with continuous simazine was largely avoided. Over the 6-yr period there was little effect on nutrient levels of the foliage. Use of a rotation of herbicides prevented the accumulation of residues in the soil and levels of all herbicides noted in year 1 of the rotation were reduced to negligible amounts 2 yr after a particular herbicide had been applied.

THE TOLERANCE OF YOUNG APPLE TREES TO AMITROLE, DIURON AND SIMAZINE

1963 ◽  
Vol 43 (2) ◽  
pp. 113-118 ◽  
Author(s):  
W. J. Saidak ◽  
W. M. Rutherford
Keyword(s):  
Weed Control ◽  
Tree Growth ◽  
Growing Season ◽  
Apple Trees ◽  
Application Rates ◽  
Leaf Chlorosis ◽  
Annual Application ◽  
Young Apple

The growth of young apple trees was reduced by application of 24 pounds per acre of either simazine or diuron in a 2-year period. Application of 30 pounds per acre amitrole in the same period had no effect on tree growth, although some slight leaf chlorosis was observed. Adequate weed control for the growing season was obtained with a spring application of amitrole 5 pounds per acre and diuron or simazine 4 pounds per acre. Annual application rates of diuron or simazine should not exceed 6 pounds per acre, in order to avoid injury to young trees.

scholarly journals EFFECTS OF WEED CONTROL METHOD ON GROWTH, YIELD AND FRUIT QUALITY OF `McINTOSH' APPLE TREES.

HortScience ◽  
1992 ◽  
Vol 27 (11) ◽  
pp. 1159b-1159
Author(s):  
John J. McCue ◽  
James R. Schupp ◽  
Highmoor Farm
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Untreated Control ◽  
Control Method ◽  
Fruit Size ◽  
Growth Yield ◽  
Soluble Solids ◽  
Apple Trees ◽  
Herbicide Treatment

The growth and fruiting of 10-year-old `Mcintosh'/M.7 apple trees were compared under the following weed management systems: 1)untreated control; 2) herbicide spray (paraquat + oryzalin); 3) rotary tilling applied in May, June and July; 4) rotary tilling plus herbicide (oryzalin); 5) rotary tilling plus oats sown in August. All weed control methods increased tree growth compared to the untreated control over three years. Yield and fruit size were increased by the herbicide and the rotary tilled treatment. Rotary tilling plus herbicide increased yield but fruit size was larger than controls in 1990 only. Rotary tilling plus oats produced yield and fruit size equivalent to the control. In 1989 and 1990 rotary tilling alone provided less weed control compared to the herbicide treatment, while in July 1991, the reverse was true. Rotary tilling with herbicide and with oats have demonstrated weed control comparable to or better than the herbicide treatment except for the rotary tilled plus oats treatment in 1990. There were no differences among treatments in fruit color, maturity and percent soluble solids.

EFFECTS OF ANNUAL REPEAT APPLICATIONS OF SIMAZINE, DIURON, TERBACIL, AND DICHLOBENIL IN A MATURE APPLE ORCHARD

1981 ◽  
Vol 61 (2) ◽  
pp. 325-329 ◽  
Author(s):  
H. B. HEENEY ◽  
V. WARREN ◽  
S. U. KHAN
Keyword(s):  
Weed Control ◽  
Apple Orchard ◽  
Common Vetch ◽  
Apple Trees ◽  
Nitrogen Levels ◽  
Fruit Maturity ◽  
Herbicide Treatments ◽  
Continued Use ◽  
Vicia Cracca ◽  
Mature Apple

Annual tree growth and yields of mature Bancroft apple trees was higher when simazine (2-chloro-4,6 bis(ethylamino)-s-triazine), terbacil (3-tert-butyl-5-chloro-6-methyluracil) and dichlobenil (2-6-dichlorobenzonitrile) were applied annually for 6 yr to control weeds compared to trees that were regularly mowed. Fruit maturity was slightly delayed with herbicide treatment. While acceptable weed control was afforded by all herbicide treatments, repeat applications of terbacil annually gave the highest level of weed control. There was an indication after a number of years of simazine use that common vetch (Vicia cracca L.) would become a major problem. In these trials all herbicides accumulated in the 0- to 15-cm surface layer of the soil profile. Continued use of specific herbicides would have some effect on both potassium and magnesium in foliage collected in mid-July. Nitrogen levels in the leaves were not increased significantly during the study.

Orchard soil management trials. 3. Effect of soil fumigation and soil management on replanted apple trees

1977 ◽  
Vol 17 (86) ◽  
pp. 510 ◽  
Author(s):  
P Baxter
Keyword(s):  
Weed Control ◽  
Tree Growth ◽  
Soil Management ◽  
Soil Fumigation ◽  
Apple Trees ◽  
Orchard Soil ◽  
Experimental Treatments ◽  
Annual Application

Apple trees were planted into soil from which old apple trees had been removed. Experimental treatments consisted of pre-plant fumigation, annual application of fungicides to the soil and four kinds of soil management. Improved tree growth and increased yield were obtained with soil fumigation and from weed control and mulching. The economics of these operations is discussed.

scholarly journals Establishment techniques for dichondra ground covers in orchards

2002 ◽  
Vol 55 ◽  
pp. 202-206
Author(s):  
K.C. Harrington ◽  
B.J. Anderson ◽  
E.A. Cameron
Keyword(s):  
Weed Control ◽  
Field Trial ◽  
Ground Cover ◽  
Lateral Spread ◽  
Apple Trees ◽  
Application Rates ◽  
Herbicide Treatments ◽  
Pot Trial ◽  
Establishment Phase

A field trial evaluated several different techniques for establishing strips of dichondra (Dichondra micrantha) under newly planted apple trees for weed control purposes Each technique involved planting a line of dichondra either side of the tree row with lateral spread of the plants eventually allowing the two strips of ground cover to merge Plugs of dichondra allowed more rapid establishment than transplanted strips of material or sown seeds However all methods gave total ground cover after 12 months In a separate pot trial several herbicide treatments suitable for controlling weeds during this establishment phase were assessed for their effects on young dichondra Herbicides that were tolerated by the dichondra included haloxyfop clopyralid tribenuron metsulfuron oxadiazon oryazalin glyphosate and propyzamide Several application rates and mixtures of some herbicides were assessed Plugs of dichondra tolerated more herbicides than young seedlings The best strategies for establishing dichondra ground covers in orchards are discussed

Weed Management in Small Grains Harvested for Grain

EDIS ◽  
2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
Jason Ferrell ◽  
Gregory MacDonald ◽  
Pratap Devkota
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Chemical Control ◽  
Management Practices ◽  
Good Management ◽  
Small Grains ◽  
Crop Competition

Successful weed control in small grains involves using good management practices in all phases of production. In Florida, winter weeds compete with small grains for moisture, nutrients, and light, with the greatest amount of competition occurring during the first six to eight weeks after planting. Weeds also cause harvest problems the following spring when the small grain is mature. This 4-page publication discusses crop competition, knowing your weeds, and chemical control. Written by J. A. Ferrell, G. E. MacDonald, and P. Devkota, and published by the UF/IFAS Agronomy Department, revised May 2020.

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