Creepy Crawlies

Frank O'Hara was working late again. The compound he ha made, would increase any plant-life hundred percent. Now, a small accident happened, a bottle with his compound fell to the street, and every drop went down the man-hole. A few days later, a small dog had been eaten. Now, with the help of the sheriff, several hugs palmetto bugs, up to seven feet, had eaten the dog, and several were found. Looking for the elderly lady, that had lost the dog, they found her dead, eaten by these huge roaches. It took several hours to find, and shoot these monsters. But, did they find all of them?