scholarly journals Utilization of Systematic Observations on Beet Leafhopper (Eutettix Tenella Baker) and Curly Leaf of Sugar Beets

1922 ◽  
Vol 15 (5) ◽  
pp. 365-368 ◽  
Author(s):  
E. A. Schwing ◽  
W. J. Hartung
Keyword(s):  
Sugar Beets ◽  
Beet Leafhopper ◽  
Curly Leaf

scholarly journals Systemic Insecticides and Plant Age Affect Beet Curly Top Virus Transmission to Selected Host Plants

Plant Disease ◽  
1999 ◽  
Vol 83 (4) ◽  
pp. 351-355 ◽  
Author(s):  
Heping Wang ◽  
P. de A. Gurusinghe ◽  
Bryce W. Falk
Keyword(s):  
Virus Transmission ◽  
Control Program ◽  
Field Studies ◽  
Plant Age ◽  
Sugar Beets ◽  
Susceptibility To Infection ◽  
Beet Leafhopper ◽  
Beet Curly Top Virus ◽  
Circulifer Tenellus ◽  
Systemic Insecticides

Greenhouse and field studies were conducted to assess the effects of systemic insecticides and plant age on beet curly top virus (BCTV) transmission to sugar beet, tomato, pepper, melon, and cowpea. Sugar beets were the most susceptible to BCTV infection. For all BCTV-susceptible plants tested, younger plants showed greater susceptibility to infection than did older plants, even when inoculations were delayed by only 1 week. Systemic insecticides applied to test plants resulted in increased beet leafhopper (Circulifer tenellus) mortality and decreased the percent BCTV transmission. Soil treatment with imidacloprid (250 g a.i./ha) gave significantly better reductions in BCTV transmission than did dimethoate foliar sprays (280 g a.i./ha). These data suggest that the use of specific systemic insecticides only when crop plants are most susceptible to BCTV infection could be an effective alternative component of the curly top disease control program.

Beet leafhopper control in sugar beets by seed or soil treatment

1960 ◽  
Vol 11 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Orin A. Hills ◽  
A.C. Valcarce ◽  
H.K. Jewell ◽  
D.C. Courdriet
Keyword(s):  
Soil Treatment ◽  
Sugar Beets ◽  
Beet Leafhopper

Productivity of sugar beets depending on the method of main soil tillage and levels of fertilization

2018 ◽  
Vol 1 (94) ◽  
pp. 21-26
Author(s):  
M. L. Tyrus
Keyword(s):  
Sugar Content ◽  
Climatic Conditions ◽  
Soil Tillage ◽  
Soil Protection ◽  
Forest Steppe ◽  
Sugar Beets ◽  
Yielding Capacity ◽  
Root Crops ◽  
Favorable Weather ◽  
Fertilization Level

Soil tillage and fertilization level are important in the system of agro-technical measures that increase soil fertility and sugar beets productivity. Today the cultivation of this crop requires a great deal of expense, therefore, there is a need for a wider study of the use of cheap soil cultivation, soil protection, energy-saving soil tillage technologies and appropriate ferti-lization levels. Under western Forest-Steppe of Ukraine conditions, investigations were conducted on dark grey podzolic light loamy soils where the influence of tillage models and fertilization levels on the formation of sugar beets root crops was studied. Shallow no-plow tillage of the soil on 14-16 cm is expedient to use as a main tillage under sugar beets. Under favorable weather and climatic conditions, it can provide yielding capacity at the level of deep fall plowing. The use of shallow no-plow tillage helped to increase the yielding capacity of sugar beet roots relative to plowing by 28-30 cm for 1.3 t / ha and the biological sugar output – for 0.2 t / ha. Then the sugar content was by 0.1% higher in the application of deep fall plowing on 28-30 cm. The optimization of the system of sugar beets fertilization allows ensuring the growth of the yielding capacity of root crops. It is established that the application of fertilizer norm N300P225K350 provides the yielding capacity at the level of 90 t / ha. The sugar content of root crops at the given fertilizer rate was the lowest in the experiment - 16.5 – 16.6%. Thanks to the high yielding capacity of root crops in terms of N300P225K350, the sugar harvesting was the highest and depending on the method of basic soil tillage was 14.95 – 14.79 t / ha. That is in 3.2 times more as to the control, in 1.3 times more than the norm of N180P135K210 and in 1.1 more than the fertilization level N240P180K280.

On the Damage of Cercospora Leaf Spot of Sugar Beets Caused by Cercospora beticola Sacc.

1968 ◽  
Vol 34 (1) ◽  
pp. 1-6
Author(s):  
Wataru IIDA ◽  
Kazuichi KUDO ◽  
Takashi KIMIGAFUKURO
Keyword(s):  
Leaf Spot ◽  
Cercospora Beticola ◽  
Cercospora Leaf Spot ◽  
Sugar Beets
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