Proceedings 55^t^h INTERNATIONAL SYMPOSIUM ON CROP PROTECTION Volume 83 Issue 4 Volume 80 Issue 3 Issue 2 Issue 1 Volume 79 Issue 1 Volume 78 Issue 4 Issue 3 Issue 2 Issue 1 Volume 77 Issue 4 Issue 3 Issue 2 Issue 1 Volume 76 Issue 4 Issue 3 Issue 2 Issue 1 Volume 75 Issue 4 Issue 3 Issue 2 Issue 1 Volume 74 Issue 4 Issue 3 Issue 2 Issue 1 Volume 73 Issue 4 Issue 3 Issue 2 Issue 1 Volume 72 Issue 4 Issue 3 Issue 2 Issue 1 Volume 71 Issue 4 Volume 70 Issue 2 Issue 1 Volume 69 Issue 3