Chemical weed control in young peach trees

1975 ◽  
Vol 15 (75) ◽  
pp. 566
Author(s):  
K Koffmann ◽  
J Kaldor
Keyword(s):  
Tree Growth ◽  
Cynodon Dactylon ◽  
Plantago Lanceolata ◽  
Chenopodium Album ◽  
Residual Effects ◽  
Polygonum Aviculare ◽  
Weed Growth ◽  
Lactuca Serriola ◽  
South Wales ◽  
Peach Trees

The effects of five residual herbicides and two mixtures of herbicides on tree and weed growth were studied in two trials over two consecutive seasons in a young peach orchard at Bathurst, New South Wales. In the first trial, dichlobenil at 4.5 and 9.0 kg ha-1 increased tree growth and suppressed weeds, but the residual effects of the low rate were short; simazine (2.2 kg ha-1), trifluralin (2.2 kg ha-1) and simazine (1 1 kg ha-1) plus trifluralin (1.1 kg ha-1) also reduced weed incidence but did not improve tree growth. In the second trial, terbacil (2.2 kg ha-1) and mixtures of diuron (1.1 kg ha-1) and terbacil at 1.1 or 2.2 kg ha-1 effectively controlled weeds, giving faster tree growth. Terbacil (1.1 kg ha-1) and diuron (1.1 kg ha-1) suppressed broadleaf but not grass weeds. Terbacil (1.1 kg ha-1) improved tree growth only in the second season; diuron (1.1 kg ha-1) did not affect tree growth. None of the peach trees displayed toxic symptoms. The main weeds present in the trial site were: Amaranthus powellii, Chenopodium album, Polygonum aviculare, Lepidium hyssopifolum, Lactuca serriola, Rumex acetosella, Sonchus oleraceus, Plantago lanceolata, Cynodon dactylon, Bromus sp, and Eragrostis sp.

Weed Control in Immature Pecan (Carya illinoensis) and Peach (Prunus persica) Plantings

Weed Science ◽  
1979 ◽  
Vol 27 (6) ◽  
pp. 638-641 ◽  
Author(s):  
C. E. Arnold ◽  
J. H. Aldrich
Keyword(s):  
Field Experiments ◽  
Prunus Persica ◽  
Cynodon Dactylon ◽  
Cyperus Rotundus ◽  
Cyperus Esculentus ◽  
Carya Illinoensis ◽  
Purple Nutsedge ◽  
Yellow Nutsedge ◽  
Weed Growth ◽  
Peach Trees

Field experiments were conducted in 1974 and 1975 to evaluate the effect of seven herbicides applied preemergence and two herbicides applied postemergence on weed growth around 7-yr-old pecan [Carya illinoensis(Wang.) K. Koch ‘Elliott’ and ‘Desirable’] and 3-yr-old peach [Prunus persica(L.) Batsch ‘June Gold’] and to observe herbicidal tolerance as noted from visually expressed phytotoxicity. After 12 weeks, the best control of bermudagrass [Cynodon dactylon(L.) Pers.], purple nutsedge(Cyperus rotundusL.), and wild blackberry (Rubus cuneifoliusPursh) was obtained with glyphosate [N-(phosphonomethyl)glycine], napropamide [2-(α-naphthoxy)-N,N-diethylpropionamide] + glyphosate, and napropamide + terbacil (3-tert-butyl-5-chloro-6-methyluracil) + paraquat (1,1′dimethyl-4,4′-bipyridinium ion). The most effective overall control of yellow nutsedge (Cyperus esculentusL.), camphorweed [Heterotheca subaxillaris(Lam.) Britt. & Rusby], dogfennel [Eupatorium capillifolium(Lam.) Small], large crabgrass [Digitaria sanguinalis(L.) Scop.], and Florida pusley (Richardia scabraL.) resulted from napropamide + terbacil + paraquat. Herbicides used caused no visible toxicity to the immature pecan or peach trees.

scholarly journals Distribution of economically important weed species in the riparian and roadside vegetation of Serbia

2021 ◽  
Vol 30 (1) ◽  
pp. 51-63
Author(s):  
Ana Anđelković ◽  
Goran Tmušić ◽  
Dragana Marisavljevićna ◽  
Mladen Marković ◽  
Dušanka Cvijanović ◽  
...  
Keyword(s):  
Cynodon Dactylon ◽  
Chenopodium Album ◽  
Arable Land ◽  
Road Networks ◽  
Riparian Areas ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Lactuca Serriola ◽  
Negative Effect ◽  
Unstable Environment

Transportation corridors such as waterways and road networks serve as an entranceway for invasive and economically important weed species. The unstable environment of riparian areas and nutrient enrichment of road verges promotes the establishment and spread of these species, which may have a negative effect on nearby arable land, leading to severe yield reductions. We aimed to register the presence and frequency of five selected weed species (Chenopodium album, Cirsium arvense, Convolvulus arvensis, Cynodon dactylon, and Lactuca serriola) within these linear corridors. Sites along waterways were visited during 2013-2016, and road networks during 2018-2019. At each site, studied weed species were registered along 100 m transects, resulting in 250 localities along waterways and 180 near road networks. The most frequent species is C. arvensis, followed by L. serriola and C. album, while less prevalent species are C. arvense and C. dactylon. The main characteristic of studied species is their preference for roadside habitats, except for Chenopodium album, which is more common in riparian areas.

scholarly journals Determination of the frequency and density of weed species in apple orchards in Kahramanmaras region of Turkey

2017 ◽  
Vol 42 (1) ◽  
pp. 87-102
Author(s):  
Tamer Üstüner
Keyword(s):  
Cynodon Dactylon ◽  
Chenopodium Album ◽  
Average Density ◽  
Amaranthus Retroflexus ◽  
Apple Orchards ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Alopecurus Myosuroides ◽  
Lactuca Serriola

A study was carried out in Kahramanmaras region of Turkey during 2012-13 having ten subregions namely, Afsin, And?r?n, Caglayancerit, Ekinozu, Elbistan, Göksun, Center, Nurhak, Pazarc?k and Türkoglu to determine the range, density and frequency of weeds in apple orchards. In the orchards 133 weed species from 31 families were determined. The average density of weeds was 112.49 plants m-2. The maximum density of weed species was found in Göksun (127.30 plants m-2) followed by Elbistan (126.13 plants m-2), Ekinozu (125.95 plants m- 2), Afsin (120.39 plants m-2), Center (117.94 plants m-2) and Caglayancerit (114.90 plants m-2), and the minimurn density was determined in Pazarc?k (69.51 plants m-2). From the identified 133 weed species one species belonged to Pterydophyta, 2l species to Monocotyledoneae and 111 species to Dicotyledoneae. The average densities of the weed species over l0 subregions for Agropyron repens (L.) P. Beauv., Chenopodium album L., Bromus arvensis L. and Amaranthus retroflexus L. were found to be 13.76, 12.17, 12.10 and 10.76 plants m-2, respectively. With regard to frequency of occurrence, C. album L. was detected more than 56% in six subregions excluding And?r?n, Pazarc?k, Türkoglu and Center; A. retroflexus L. more than 54% in 7 subregions excluding Center, Pazarc?k and Türkoglu and A. repens (L.) P. Beauv. more than 50% in 10 subregions. Frequency of occurance of Cynodon dactylon (L.) Pers. was observed 50.1, 50.9, 76.9% in Afsin, Caglayancerit and And?r?n, respectively and it was below 50% in other 7 subregions. In terms of coverage, Alopecurus myosuroides Huds., A. retroflexus, A. repens, B. arvensis, C. album, Convolvulus arvensis L., C. dactylon and Lactuca serriola L. were determined to be within the range of 20.2 to 48.2% in the study areas while the other species were below 20%.Bangladesh J. Agril. Res. 42(1): 87-102, March 2017

scholarly journals Postemergence Polygonum aviculare control in Cynodon dactylon turf

itsrj ◽  
2021 ◽  
Author(s):  
Whitnee L. B. Askew ◽  
John B. Willis ◽  
Josh B. Beam ◽  
Katelyn A. Venner ◽  
Clebson G. Gonçalves ◽  
...  
Keyword(s):  
Cynodon Dactylon ◽  
Polygonum Aviculare

scholarly journals Evaluation of Different Weed Management Practices on Growth Variables and Yield of Wheat Varieties

2020 ◽  
pp. 7-30
Author(s):  
Md. Golam Mostafa ◽  
Syed Arvin Hassan ◽  
Md. Ehsanul Haq ◽  
Md. Ahasan Habib ◽  
Kaniz Fatema ◽  
...  
Keyword(s):  
Grain Yield ◽  
Weed Management ◽  
Management Practices ◽  
Cynodon Dactylon ◽  
Chenopodium Album ◽  
Cyperus Rotundus ◽  
Alternanthera Philoxeroides ◽  
Weed Species ◽  
Wheat Varieties ◽  
Hand Weeding

A field experiment was conducted in medium fertile soil at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during November 2017 to April 2018 in Rabi season with a view to evaluate the performance of wheat varieties under different weed control methods. The experiment was carried out with three varieties i.e. BARI Gom-28, BARI Gom-29 and BARI Gom-30 in the main plot and five weed management methods viz. control (no weeding), two hand weeding at 20 and 40 DAS, Panida 33EC (Pendimethalin) @ 2000 ml ha-1 at 5 DAS pre-emergence, Afinity 50.75WP (Isoproturon) 1500 g ha-1 at 25 DAS as post-emergence herbicide and Panida 33EC (Pendimethalin) @ 2000 ml ha-1 at 5 DAS + Afinity 50.75WP (Isoproturon)1500 g ha-1 at 25 DAS in the sub plot in split plot design. Nine different major weed species were found in the field such as Cynodon dactylon, Cyperus rotundus, Echinochloa colonum, Eleusine indica, Chenopodium album, Alternanthera philoxeroides, Brassica kaber, Leliotropium indicum, Vicia sativa. Results reveled that BARI Gom-30 contributed the highest grain yield 3.01 tha-1. Pre-emergence application of Panida 33EC controlled weeds significantly which showed highest growth followed by yield achieved in wheat. BARI Gom-30 in combination with Panida 33EC produced the highest grain yield 3.52 tha-1 while the lowest grain yield 2.09 t ha-1 was obtained from BARI Gom-28 with no weeding treatment. Results reveled that Panida 33EC (pre-emergence) was found more effective to controlling weeds in wheat. Results of the study finally reveled that Panida 33EC might be considered as a feasible option for combating weed and ensuring higher yield in wheat cultivation.

scholarly journals Topsoil Seed Bank as Feeding Ground for Farmland Birds: A Comparative Assessment in Agricultural Habitats

Land ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 967
Author(s):  
Aikaterini Voudouri ◽  
Evgenia Chaideftou ◽  
Athanassios Sfougaris
Keyword(s):  
Seed Bank ◽  
Food Supply ◽  
Chenopodium Album ◽  
Amaranthus Retroflexus ◽  
Comparative Assessment ◽  
Farmland Birds ◽  
Polygonum Aviculare ◽  
Low Intensity ◽  
Southern Mediterranean ◽  
Agricultural Areas

The topsoil seed bank was studied in four types of agricultural bird habitats: fields with cereals, maize, clover and tilled fields of a Mediterranean plain to determine the potentially richest habitat based on food supply for the wintering farmland birds. The diversity and abundance of topsoil seeds differed between seasons but did not differ significantly between habitats. The cereal habitat was the richest in food supply for the overwintering of farmland birds. The topsoil seed bank was dominated by Chenopodium album, Polygonum aviculare and Amaranthus retroflexus. The findings of this study provide insight for low-intensity management of higher-elevation mount agricultural areas of southern Mediterranean by preserving seed-rich habitats for farmland avifauna.

scholarly journals Nuevos xenófitos de La Palma (Islas Canarias, España), con énfasis en las especies naturalizadas y (potencialmente) invasoras. Parte 2.

2018 ◽  
Vol 37 ◽  
pp. 005
Author(s):  
R. Otto ◽  
F. Verloove
Keyword(s):  
Sorghum Bicolor ◽  
Plantago Lanceolata ◽  
Robinia Pseudoacacia ◽  
Abutilon Theophrasti ◽  
Polygonum Aviculare ◽  
Syzygium Jambos ◽  
Ipomoea Purpurea ◽  
La Palma ◽  
Malvastrum Coromandelianum

Varios meses de trabajos de campo en La Palma (Islas Canarias occidentales) han posibilitado el descubrimiento de nuevas plantas vasculares no nativas. Abutilon theophrasti, Agrostis xfouilladeana, Alternanthera brasiliana, Bupleurum salicifolium subsp. salicifolium, Callisia fragrans, Emilia coccinea, Hyparrhenia sinaica, Ipomoea purpurea, Jasminum polyanthum, Macfadyena unguis-cati, Malvastrum coromandelianum subsp. coromandelianum, Misopates calycinum, Nephrolepis cordifolia, Opuntia microdasys, Passiflora subpeltata, Plantago lanceolata, Polygonum aviculare subsp. rurivagum, Pseudogynoxys chenopodioides, Psidium littorale, Robinia pseudoacacia, Rosa micrantha, Rumex bucephalophorus subsp. gallicus, Sorghum bicolor subsp. verticilliflorum, Sphagneticola trilobata, Syzygium jambos, Thunbergia alata y Youngia japonica subsp. japonica son xenófitos naturalizados o (potencialmente) invasores, se citan por primera vez para las Islas Canarias o para La Palma. Se dan a conocer por primera vez 14 t·axones adicionales, probablemente casuales, de las Islas Canarias y 15 taxones de la isla de La Palma.

scholarly journals Experimentation of grapevine cultivation in organic system, on five different Romanian vineyards

2016 ◽  
Vol 73 (2) ◽  
pp. 175
Author(s):  
Aurora Maria Ranca ◽  
Victoria Artem ◽  
Ionica Dina ◽  
Liliana Parcalabu ◽  
Maria Iliescu ◽  
...  
Keyword(s):  
Cynodon Dactylon ◽  
Climatic Factors ◽  
Growing Season ◽  
Lobesia Botrana ◽  
Amaranthus Retroflexus ◽  
Mean Annual Temperature ◽  
Stellaria Media ◽  
Annual Average ◽  
Organic System ◽  
Polygonum Aviculare

In five Romanian vineyards, in 2013-2014 period was experimented organic system growing on  grape varieties for wine representative for each area, here are applied organic growing technology in parallel with the conventional (control). White varieties studied are: Chardonnay (Murfatlar and Valea Calugareasca), Sauvignon blanc and Muscat Ottonel(Tarnave), Feteasca regala (Tarnave, Bujoru and Copou-Iasi). Red varieties are Cabernet Sauvignon (Murfatlar and Valea Calugareasca) and Merlot (Bujoru).Concerning evolution of main climatic factors for the years 2013-2014 it is show that the annual average air temperature increase compared with the average of the years 1991-2010; is observed an increasing in mean annual temperature, mean temperature during the growing season and the value of sum of sunshine hours. The water regime was kept constant, registering values close to the annual average, both during the growing season and at entire year. The weeds spectrum is represented both by dicotyledonous as knotweed (Polygonum aviculare), Veronica (Stellaria media), news (Amaranthus retroflexus), bindweed (Convolvurus arvensis) and monocotyledonous as grass thick (Cynodon dactylon).Concerning the phytosanitary status, at Murfatlar were registered problems with oidium attack, with all main disease at Dealu Mare and with downy mildew at Bujoru. In all areas the pest has been found are: grape mouth (Lobesia botrana) and spiders (Tetranichus sp.). Schemes of treatments focused generally on substances bassed on copper and sulfur to combat diseases and for pests have been used pheromonal traps or other certified organic products.The grapes harvest was lower in organic plots with till 25%; their quality being close at both growing variants.

scholarly journals Nematode Populations and Peach Tree Survival, Growth, and Nutrition at an Old Orchard Site

1992 ◽  
Vol 117 (1) ◽  
pp. 6-13 ◽  
Author(s):  
Dean R. Evert ◽  
Paul F. Bertrand ◽  
`Benjamin G. Mullinix
Keyword(s):  
Tree Growth ◽  
Prunus Persica ◽  
Paspalum Notatum ◽  
Parasitic Nematodes ◽  
Severe Stunting ◽  
Growth And Nutrition ◽  
Tree Survival ◽  
Peach Trees ◽  
Positive Effect ◽  
Survival Tree

Bahiagrass (Paspalum notatum Flugge cv. Paraguayan-22) growing under newly planted peach [Prunus persica (L.) Batsch.] trees severely stunted the trees. Neither supplemental fertilizer nor irrigating with two 3.8-liters·hour-1 emitters per tree eliminated tree stunting emitters were controlled by an automatic tensiometer set to maintain 3 kpa at a depth of 0.5 m under a tree in bahiagrass. Preplant fumigation with ethylene dibromide at 100 liters·ha-1 increased tree growth, but not tree survival. Fenamiphos, a nematicide, applied under the trees each spring and fall at a rate of 11 kg-ha -1 had no positive effect on tree survival, tree growth, or nematode populations. Bahiagrass tended to suppress populations of Meloidogyne spp. under the trees., Meloidogyne spp. were the only nematodes present that had mean populations > 65 per 150 cm3 of soil. Leaf concentrations of several elements differed between trees growing in bahiagrass sod and in. bare ground treated with herbicides. Leaf Ca was low for all treatments in spite of a soil pH near 6.5 and adequate soil Ca. The severe stunting of trees grown in bahiagrass, irrespective of the other treatments, demonstrated that bahiagrass should not be grown under newly planted trees. The low populations of parasitic nematodes in bahiagrass showed that bahiagrass has potential as a preplant biological control of nematodes harmful to peach trees. Chemical name used: ethyl 3-methy1-4-(methylthio) phenyl (1-methylethyl) phosphoramidate (fenamiphos).

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