Probleme der chemischen Bekämpfung schädlicher Tiere im Walde
Spraying Toxaphen against mice in forest cultures seems to be doubtful on the strength of side effects. The effectiveness of toxic baits for mice control should be increased by raising attractiveness as well as by reducing the size of baits. Experiments showed that Tetrachlorvinfos can be used forHylobius-control in place of DDT. Within young coniferous stands cleared by chemicals bark beetles can be controlled by felled stems sprayed with BHC. For avio chemic measures against larvae in the crowns of conifer the best results were obtained by using insecticides mixed with Diesel oil.
Waldschutz und DDT-Verbot
SummaryForest protection and ban on applying DDT
 The bans on applying DDT enacted by the governments of BRD an other States are founded politically but not scientifically, DDT is the best and most harmless insecticide we ever have had. Its accumulation within the fat body of animals and men for a certain time does not cause pathological symptoms. Some effects unfavourable to wildlife animals are consequences of incorrect application.In forest protection in Germany DDT is needed also in future for controlling the weevielHylobius abietis, the lepidoptersRhyacionia buoliana andChoristoneura murinana as well as the sawflies of genusDiprion. It is demanded of the legislator to prolong the use of DDT in these cases until equivalent insecticides have been found. Lindan (γ-BHC)-compounds are not suitable for controllingHylobius beetles.
Inequality trends in health and future health risk among English children and young people, 1999–2009
Objective To investigate trends in health inequality among children and young people between 1999 and 2009, using outcomes consistent with the current NHS reforms. Design/data Secondary analysis of participants aged 0–24 in the Health Surveys for England (HSE) undertaken in 1999, 2004, 2006 and 2009. Main outcome measures Changes in the absolute and relative risks of four health outcomes by deprivation tertiles, based on occupation of the head of household ▸ self/parent-reported general health, ▸ presence of a long-standing illness (LSI), ▸ obesity ▸ smoking. Results No indicator showed a reduction in relative or absolute inequality between 1999 and 2009. For children (0–12 years), the relative risk comparing the most and least deprived tertiles increased significantly for poor general health (1999:1.6 (95% CI 1.2 to 2.2); 2009:3.9 (2.4 to 6.2), while the absolute difference in LSI prevalence(%) increased from 1.3 (−2.9 to 5.5) to 7.4 (3.6 to 11.4). Among young people (13–24 years), the absolute difference in LSI prevalence increased from −5.9 (−10.9 to −1.1) to 3.1 (−4.1 to 10.7). Absolute inequality in having tried smoking among children aged 8–15(%) increased significantly in the first half of the decade before decreasing in the second half (1999:3.3 (−1.1 to 7.7); 2004:14.1 (9.6 to 18.8); 2009:4.1 (0.1 to 8.8)). However, the increase in absolute inequality for smoking prevalence among young adults (16–24 years) was maintained throughout the decade (1999:−7.0 (−15.6 to 1.3); 2004:11.6 (3.7 to 20.0); 2009:8.2 (−0.3 to 16.9)). Conclusions The national programme between 1999 and 2009 was not successful in reducing inequality in four key indicators of health status and future health risk among children and young people. Some inequality measures for general health, LSI prevalence and smoking increased over this time.