scholarly journals Correction to: Precision trunk injection technology for treatment of huanglongbing (HLB)-affected citrus trees—a review

2021 ◽  
Author(s):  
Meng Li ◽  
Ziyan Nangong
Keyword(s):  
Trunk Injection ◽  
Injection Technology ◽  
Citrus Trees

scholarly journals Evaluation of the effectiveness of insecticide trunk injections for control ofLatoia lepida(Cramer) in the sweet olive treeOsmanthus fragrans

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2480 ◽  
Author(s):  
Jun Huang ◽  
Juan Zhang ◽  
Yan Li ◽  
Jun Li ◽  
Xiao-Hua Shi
Keyword(s):  
Ornamental Plants ◽  
Injection System ◽  
Emamectin Benzoate ◽  
Osmanthus Fragrans ◽  
Control Option ◽  
Key Factor ◽  
Trunk Injection ◽  
Injection Technology ◽  
Nettle Caterpillar ◽  
Chemical Pesticides

The screening of suitable insecticides is a key factor in successfully applying trunk injection technology to ornamental plants. In this study, six chemical pesticides were selected and injected into the trunks ofOsmanthus fragransto control the nettle caterpillar,Latoia lepida(Lepidoptera: Limacodidae), using a no-pressure injection system. The absorption rate of the insecticides, the leaf loss due to insect damage, and the mortality and frass amount ofL. lepidalarvae were evaluated after 77 and 429 days. The results showed that 4% imidacloprid + carbosulfan and 21% abamectin + imidacloprid + omethoate had the fastest conductivity and were completely absorbed into the trunkswithin14 days; however, the efficiencies of these insecticides in controllingL. lepidawere extremely low. Additionally, the treatment 10% emamectin benzoate + clothianidin and 2.5% emamectin benzoate was almost completely absorbed within 30 days and exhibited a longer duration of insecticide efficiency (>80% mortality) in the upper and lower leaves of the canopy. Treatment with these insecticides also resulted in significantly lower leaf loss and frass amounts. We conclude that emamectin benzoate and emamectin benzoate + clothianidin have a rapid uptake intoO. fragrans, and are effective as insecticides over long durations. Hence, they may be a suitable control option forL. lepidainO. fragransplants.

scholarly journals The Role of the Xylem in Oxytetracycline Translocation within Citrus Trees

Antibiotics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 691
Author(s):  
Faraj Hijaz ◽  
Yasser Nehela ◽  
Fuad Al-Rimawi ◽  
Christopher I. Vincent ◽  
Nabil Killiny
Keyword(s):  
Plant Pathogens ◽  
Control Plant ◽  
Plant Diseases ◽  
In Planta ◽  
Citrus Industry ◽  
Elisa Kit ◽  
Therapeutic Value ◽  
Trunk Injection ◽  
Citrus Trees

Antibiotics have been successfully used to control plant diseases for more than fifty years. Recently, oxytetracycline and streptomycin have been approved for the treatment of Huanglongbing, which is threatening the citrus industry in many regions. Because the efficiency of antibiotics in planta is highly affected by their movement and distribution, understanding the mechanism of antibiotics’ uptake and distribution could lead to a better control of plant pathogens. Herein, we investigated the movement of oxytetracycline within citrus plants. Oxytetracycline was applied by root drenching to both girdled and non-girdled citrus seedlings. In addition, oxytetracycline was applied by trunk injection to girdled and non-girdled citrus trees. After the exposure time (24 h), citrus seedlings were dissected and the levels of oxytetracycline in the different tissues were measured using an oxytetracycline ELISA kit. Upon root application (laboratory experiment), oxytetracycline was detected in the inner part of the stem (xylem-associated tissue), cortex (phloem-associated tissue), and leaves above and below the girdled area. Likewise, oxytetracycline was also detected in leaves of trunk-injected field trees (girdled and non-girdled) three days post treatment. Interestingly, cortex girdling did not affect the distribution and translocation of oxytetracycline, indicating that the xylem is the main path for oxytetracycline translocation. Taken together, our results indicate that oxytetracycline translocation mainly occurs via xylem vessels, and that movement into the phloem occurs subsequent to xylem translocation. Our findings also clearly demonstrated that upon trunk injection, only trace levels of oxytetracycline reached the roots, minimizing its therapeutic value there. Thus, our recommendation is to time tree injections to coincide with the flushing periods when the bacteria are moving into new shoots to maximize the efficiency of oxytetracycline.

Penicillin Trunk Injection Affects Bacterial Community Structure in Citrus Trees

2018 ◽  
Vol 78 (2) ◽  
pp. 457-469 ◽  
Author(s):  
Marina S. Ascunce ◽  
Keumchul Shin ◽  
Jose C. Huguet-Tapia ◽  
Ravin Poudel ◽  
Karen A. Garrett ◽  
...  
Keyword(s):  
Community Structure ◽  
Bacterial Community ◽  
Bacterial Community Structure ◽  
Trunk Injection ◽  
Citrus Trees

Photosynthetic responses of citrus trees to soil flooding

1991 ◽  
Vol 81 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Joseph C. V. Vu ◽  
George Yelenosky
Keyword(s):  
Soil Flooding ◽  
Photosynthetic Responses ◽  
Citrus Trees

2016 Planting and Annual Cultural Maintenance Costs for Reset-Replacement Trees in a Florida Citrus Grove

EDIS ◽  
2016 ◽  
Vol 2016 (7) ◽  
Author(s):  
Marina Burani Arouca ◽  
Stephen Hubbard Futch ◽  
Ariel Singerman
Keyword(s):  
Citrus Grove ◽  
Maintenance Costs ◽  
Cultural Maintenance ◽  
Florida Citrus ◽  
Citrus Trees

We provide estimates for the costs of planting and maintaining reset citrus trees in Florida in the era of HLB, The estimates are useful as a benchmark but also to inform industry stakeholders and policymakers regarding the costs growers have to incur in when planting new trees.

Studies on the cold injury of citrus trees. V.

1966 ◽  
Vol 35 (2) ◽  
pp. 106-110
Author(s):  
F. YOSHIMURA ◽  
K. KATO ◽  
H. MASUDA
Keyword(s):  
Cold Injury ◽  
Citrus Trees

Experimental Research on the Qualitative Characteristics of Iron Ores and Ferrous Waste That Can Be Used in Blast Furnace Mixt Injection Technology

2019 ◽  
Vol 70 (11) ◽  
pp. 3835-3842
Author(s):  
Mihai Dumitru Tudor ◽  
Mircea Hritac ◽  
Nicolae Constantin ◽  
Mihai Butu ◽  
Valeriu Rucai ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Experimental Research ◽  
Raw Materials ◽  
Coal Dust ◽  
Production Costs ◽  
Iron Ores ◽  
Fine Grained ◽  
Experimental Laboratory ◽  
Injection Technology ◽  
Direct Use

Direct use of iron ores in blast furnaces, without prior sintering leads to a reduction in production costs and energy consumption [1,2]. Fine-grained iron ores and iron oxides from ferrous wastes can be used together with coal dust and limestone in mixed injection technology through the furnace tuyeres. In this paper are presented the results of experimental laboratory investigations for establishing the physic-chemical characteristics of fine materials (iron ore, limestone, pulverized coal) susceptible to be used for mixed injection in blast furnace. [1,4]. The results of the experimental research have shown that all the raw materials analyzed can be used for mixt injection in blast furnace.

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