diff --git a/src/main/java/ch/zhaw/gartenverwaltung/Main.java b/src/main/java/ch/zhaw/gartenverwaltung/Main.java
index 9005ec0..d31860d 100644
--- a/src/main/java/ch/zhaw/gartenverwaltung/Main.java
+++ b/src/main/java/ch/zhaw/gartenverwaltung/Main.java
@@ -22,6 +22,7 @@ public class Main extends Application {
         AppLoader appLoader = new AppLoader();
 
         backgroundTasks = new BackgroundTasks((TaskList) appLoader.getAppDependency(TaskList.class),(CropList) appLoader.getAppDependency(CropList.class), (PlantList) appLoader.getAppDependency(PlantList.class));
+        // TODO reduce period
         backGroundTaskTimer.scheduleAtFixedRate(backgroundTasks, 0, 1000);
 
         appLoader.loadSceneToStage("MainFXML.fxml", stage);
diff --git a/src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/BackgroundTasks.java b/src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/BackgroundTasks.java
index 33c58f6..96eed67 100644
--- a/src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/BackgroundTasks.java
+++ b/src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/BackgroundTasks.java
@@ -1,44 +1,62 @@
 package ch.zhaw.gartenverwaltung.backgroundtasks;
 
+import ch.zhaw.gartenverwaltung.CropDetailController;
 import ch.zhaw.gartenverwaltung.backgroundtasks.weather.WeatherGradenTaskPlanner;
 import ch.zhaw.gartenverwaltung.io.CropList;
 import ch.zhaw.gartenverwaltung.io.HardinessZoneNotSetException;
 import ch.zhaw.gartenverwaltung.io.PlantList;
 import ch.zhaw.gartenverwaltung.io.TaskList;
-import ch.zhaw.gartenverwaltung.models.Garden;
 import ch.zhaw.gartenverwaltung.models.PlantNotFoundException;
+import ch.zhaw.gartenverwaltung.types.Task;
 
 import javax.mail.MessagingException;
 import java.io.IOException;
+import java.time.LocalDate;
+import java.util.List;
 import java.util.TimerTask;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 public class BackgroundTasks extends TimerTask {
+    private static final Logger LOG = Logger.getLogger(CropDetailController.class.getName());
+    private final TaskList taskList;
     private final Notifier notifier;
     private final WeatherGradenTaskPlanner weatherGardenTaskPlaner;
 
+    private void movePastTasks() throws IOException {
+        List<Task> taskList = this.taskList.getTaskList(LocalDate.MIN, LocalDate.now().minusDays(1));
+        taskList.forEach(task -> {
+            if (!task.isDone()) {
+                task.setNextExecution(LocalDate.now());
+            }
+        });
+    }
+
     public BackgroundTasks(TaskList taskList, CropList cropList, PlantList plantList) {
+        this.taskList = taskList;
         notifier = new Notifier(taskList, plantList, cropList);
         weatherGardenTaskPlaner = new WeatherGradenTaskPlanner(taskList, plantList, cropList);
     }
 
     @Override
     public void run() {
+        try {
+            movePastTasks();
+        } catch (IOException e) {
+            e.printStackTrace();
+            LOG.log(Level.SEVERE, "Could not execute Background Task: move past Tasks ", e.getCause());
+        }
         try {
             weatherGardenTaskPlaner.refreshTasks();
         } catch (IOException | HardinessZoneNotSetException | PlantNotFoundException e) {
             e.printStackTrace();
-            // TODO logger
+            LOG.log(Level.SEVERE, "Could not execute Background Task: Refresh Tasks by WeatherGardenTaskPlaner ", e.getCause());
         }
         try {
-            try {
-                notifier.sendNotifications();
-            } catch (MessagingException e) {
-                e.printStackTrace();
-                // TODO logger
-            }
-        } catch (IOException e) {
+            notifier.sendNotifications();
+        } catch (IOException | MessagingException | HardinessZoneNotSetException e) {
             e.printStackTrace();
-            // TODO logger
+            LOG.log(Level.SEVERE, "Could not execute Background Task: send Notification for due Tasks", e.getCause());
         }
     }
 }
diff --git a/src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/Notifier.java b/src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/Notifier.java
index a77ae06..072cd25 100644
--- a/src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/Notifier.java
+++ b/src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/Notifier.java
@@ -25,30 +25,20 @@ public class Notifier {
         this.plantList = plantList;
     }
 
-    private void sendNotification(Task task) {
+    private void sendNotification(Task task) throws IOException, MessagingException, HardinessZoneNotSetException {
         String plantName = "unkown plant";
-        try {
-            if(cropList.getCropById((task.getCropId())).isPresent()){
-                Crop crop = cropList.getCropById(task.getCropId()).get();
-                if(plantList.getPlantById(Settings.getInstance().getCurrentHardinessZone(), crop.getPlantId()).isPresent()) {
-                    plantName = plantList.getPlantById(Settings.getInstance().getCurrentHardinessZone(), crop.getPlantId()).get().name();
-                }
+        if(cropList.getCropById((task.getCropId())).isPresent()){
+            Crop crop = cropList.getCropById(task.getCropId()).get();
+            if(plantList.getPlantById(Settings.getInstance().getCurrentHardinessZone(), crop.getPlantId()).isPresent()) {
+                plantName = plantList.getPlantById(Settings.getInstance().getCurrentHardinessZone(), crop.getPlantId()).get().name();
             }
-        } catch (IOException | HardinessZoneNotSetException e) {
-            e.printStackTrace();
-            // TODO logger
         }
         String messageSubject = String.format(Settings.getInstance().getMailNotificationSubjectTemplate(), task.getName());
         String messageText = String.format(Settings.getInstance().getMailNotificationTextTemplate(), task.getName(), plantName, task.getNextExecution(), task.getDescription());
-        try {
-            eMailSender.sendMails(Settings.getInstance().getMailNotificationReceivers(), messageSubject, messageText);
-        } catch (MessagingException e) {
-            e.printStackTrace();
-            // TODO Logger
-        }
+        eMailSender.sendMails(Settings.getInstance().getMailNotificationReceivers(), messageSubject, messageText);
     }
 
-    public void sendNotifications() throws IOException, MessagingException {
+    public void sendNotifications() throws IOException, MessagingException, HardinessZoneNotSetException {
         for (Task task : taskList.getTaskList(LocalDate.MIN, LocalDate.MAX)) {
             if (task.getNextNotification() != null && task.getNextNotification().isBefore(LocalDate.now().minusDays(1))) {
                 sendNotification(task);