The results of the field plot experiment indicated that the control effect on the diseased blades and fruits of tomato plant could be 69.82% and 72.74% at the concentration of 300ml/L respectively.
The experiment shows that 2% tebuconazole(200g a i /100kg oxadiargyl),2.5%fludioxonil(200ml a i /100kg oxadiargyl)can be used for control of wheat stem smut,control effect is 94.7%and 88.3% respectively,Obvicusly,it’s much higher than mose of 15% triad imefon,40%quintozene.
The control effect was 78.91%～89.89% at the rate of 600～750ml/ha during1,3,7 day after treament ,and the effect on protection the cotton buds and bolls was 79.77%～86.51% during 7 day after treatment.
The pri-mary bioassay results showed that compounds 4c, 5a, 5b and 5c exhibited control efficacy of more than 90% against Abutilon avicennae, Portulaca oleracea, and Amaranthus spinosus at 75 g/hm2.
It shows,by two test on control efficacy,20% Triazophos EW good control effect on chilo suppressalis,recommended dosage of 100～150mL /667m2 & sup2; with which the control effect reaches 90% after 21 days use of pesticide.
Comparison of control efficacy against corn head smut between 40% Vitavax 200FF and 15% triadimefon WP was made in 1998.The efficacy of corn seed treatment with 40% Vitavax 200FF at 3ml/kg corn seed was 88.47%,much higher than that with 15% triadimefon WP. The seedling emergancy was faster in the case of corn seed treatment with Vitavax 200FF than with triadimefon and also better than the untreated seeds.
The control effects of 2.1% cypermethrin-abamectin EC in field trial reached 86.8%～100% after 1～3 days,97.8%～100% after 7 days with 1000～2000 times diluents.
It's control effects to the diseases caused by Botrytis cinerea and Alternaria solani in tomato were up to 84.4%-90.7% and 90.24%-94.86% respectively. Though inspecting for field assay, we found that tomato plants were in good growth resulting in their fruits colouring well and their output getting obviously increasing in the areas sprayed by this pesticide.
The result of field experiments showed that 12.5%diniconazole had good control effects against wheat sheath blight(Rhizoctonia cerealis V.Hoeven& R.Solani Kühn). When 300～400g pesticide was stired together with every 100kg wheat seed,the control effect was 93.2% and the weight increase per 1000 seeds was 1.6～5.2g.
Two sprays at the concentration of 300g/ha that were applied in late February and middle March had so excellent control effects that it was up to 99.3%～100%.
The results of trial showed that cyhalothrin gave good control effect against Tessaratoma papillosa Drury. Each of them can get more than 90.6% of control effects 1～7 days after sprayed by Cyhalothrin 2.5EC(1:2000～4000). Among them cyhalothrn 2.5EC(1:2000)is best,the control effect reached to 100%.
In soil treatment, its inhibiting ratio to the tested latifoliate weeds is more than 90% at the dose of 15 g/hm2. Moreover, at the dose of 150 g/hm2, it can kill all tested weeds.
Evaluation of their biological activities showed that 3-(hydroxy(4-nitrophenyl)methyl)but-3-en-2-one (BH-28) exhibited efficient fungicidal activity, with 100% control of Phytophthora infestans at 25 g a.
/hm~2的剂量下，3-(羟基(4-硝基苯基)甲基)-3-亚甲基-2-丁酮(BH-28)对番茄晚疫病(Phytophthora infestans)的防效为100％； 在2000 g a.
Flutter control effect and mechanism of central-slotting for long-span bridges
The control effect of central-slotting depends on the aerodynamic configuration of the original girder section and the corresponding central-slotting width.
The control channel is divided into two channels (fast and slow) for enhancing the speed of response at a significant range of the control effect.
Simulation results indicated that the proposed controller exhibits satisfying control effect.
The activities of enzymes responsible for lignification in pepper, pre-inoculation with arbuscular mycorrhizal (AM) fungus ofGlomus intraradices and/or infection with pathogenic strain ofPhytophthora capsici, and the biological control effect ofG.
flavescens (2%) extracts showed a significant control effect, with a control efficacy of 96.67%, G.
In conclusion, host instar, food supplement and photoperiod could have potential for improving biological control efficacy in stores.
The fate of the pesticides in the soil environment in respect of pest control efficacy, non-target organism exposure and offsite mobility has been given due consideration [2].
The necessity of using X-rays to control efficacy of osteoporosis treatment
Organophosphate Dormant Spray Pest Control Efficacy, Pesticide Concentration and Toxicity in Storm Runoff
However, the absence of pronounced control effects of most metabolites on the studied enzymes allows us to assign them to a relatively inert pool of metabolites.
Several different types of porous wall/cavity systems are tested to investigate the passive control effects.
The two logics have been tested under various driving conditions to investigate their control effects.
A model is described that allows one to compensate for the influence of perturbing factors and mutual influence of control effects on neighboring regions.
The wind-control effects of shelterbelts with different structures (close-spaced, wider-spaced, and widest-spaced) were investigated by portable wind vane and anemometer, wet and dry bulb thermometer, ground thermometer, glass service instrument.
Sodium Sulfanilate(Ⅰ)and sulfanilic acid (Ⅱ)were found to penetrate readily into the leaves when sprayed on groundnut plant,the amounts taken in being 0.1352 and 0.0772μg/mg dry wt.of leaf respectively.The distribution pattern of I within the plant was rather uniform. The amounts of the chemical in the upper,middle and lower leaves were 0.1043, 0.1070 and 0.1024μg/mg dry wt.of leaf respectively on the 8th day after spraying and 0.0972,0.0797 and 0.0765μg/mg dry wt.of leaf respectively on the 15th day.The acropetal...
Sodium Sulfanilate(Ⅰ)and sulfanilic acid (Ⅱ)were found to penetrate readily into the leaves when sprayed on groundnut plant,the amounts taken in being 0.1352 and 0.0772μg/mg dry wt.of leaf respectively.The distribution pattern of I within the plant was rather uniform. The amounts of the chemical in the upper,middle and lower leaves were 0.1043, 0.1070 and 0.1024μg/mg dry wt.of leaf respectively on the 8th day after spraying and 0.0972,0.0797 and 0.0765μg/mg dry wt.of leaf respectively on the 15th day.The acropetal translocation was demonstrated to be very prominent with I in groundnut plant. But merely a limited basipetal movement was shown,the amount recovered in the roots being only 0.25% of the chemical applied to leaves.However,the ability to move down-ward to a short distance was shown for I and the transverse translocation was found to be relatively more significant.Therefore,it is not necessary to have a highly uniform spray during the application of the chemical.The amounts of I determined in plants growing from seeds sown right after and 3 days after dressing were 2.4628-2.6200 and 1.8654-1.8664μg/plant respectively. It is,therefore,recommended to sow seeds on the day of dressing but not to store the treated seeds intentionlly when a seed treatment is claimed to control leaf rust of groundnut. Sodium sulfanilate was found to penetrate through roots and translocate to foliages in the above-ground parts of groundnut plant readily when applied to soil. Surfactants were shown to faciliate the penetration. The solution of I with an addition of "Tween 80"(Ⅲ)or colloidalsurfur containing 50% of sulphite by product of pulp)(Ⅳ) were found to promote the readiness of the movement of the chemical in soil. In a layat of "20 cm of soil, the retention rates of the chemicals were found to be 3.41% 2.58% and 2.74% for Ⅰ,Ⅲ and Ⅳ respectively. In the soil drench experiments on the control of leaf rust,it was found the efficacies were 59.45% and 95.52% for Ⅰ and Ⅳ respectively.It was thus further shown that the formulation of the combination of "di-xiu-na" and colloidal sulfur is very reasonable.
The pyrethroids were generally not effective to mites. A series of esters with the general formula, P-R-C_6H_4CH (i-pr) CO_2CH_2 (CH_2)_nCH_3 R=Cl, CH_3 n=6, 8, 12, 14, 16. were synthesized from the corresponding α-substiuted phcnyl acetic acid and long chain n-alkanols. It was found that the ester with R=Cl and n=12 is more effective to mites.
The pyrethroids were generally not effective to mites. A series of esters with the general formula, P-R-C_6H_4CH (i-pr) CO_2CH_2 (CH_2)_nCH_3 R=Cl, CH_3 n=6, 8, 12, 14, 16. were synthesized from the corresponding α-substiuted phenyl acetic acid and long chain n-alkanols. It was found that the ester with R = Cl and n = 12 is more effective to mites.
防效
control effect 
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