how to clear dynamic label by click

Hey, I have a script with a button that creates some input with two labels:     

private void button1_Click_1(object sender, EventArgs e)
{
    int countWorkers = Int32.Parse(checkedListBox1.Items.Count.ToString());
    int countMissions = Int32.Parse(checkedListBox2.Items.Count.ToString());
    int minBtw;
    selectedWorkes = new string[countWorkers];
    selectedMissions = new string[countMissions];
    randomMissions = new string[countMissions];
    if (countWorkers < countMissions)
        minBtw = countWorkers;
    else
        minBtw = countMissions;
    minBtw = addSelected(countWorkers, countMissions);
    // addLabel(10, b, 40, 180);
    for (int i = 0; i < minBtw; i++)
    {
        addLabel(i, selectedMissions[i], 40, 250 + 20 * i);
        addLabel(i, selectedWorkes[i], 170, 250 + 20 * i);
    }
}

the label looks like this:

private void addLabel(int i, String lblType, int x, int y)
{
    Label l = new Label();
    l.AutoSize = true;
    l.Location = new System.Drawing.Point(x, y);
    l.Name = "" + lblType + i;
    l.Size = new System.Drawing.Size(146, 117);
    l.TabIndex = 3;
    l.Text ="" + lblType;
    l.Font = new Font("Calibri", 12);
    l.BorderStyle = BorderStyle.Fixed3D;
    l.ForeColor = Color.Red;
    l.BackColor = Color.White;
    this.Controls.Add(l);
}

now I would like to create a second button to clear the dynamic label input.

how can I do it?