&middotDrought damage - needles gradually turn yellowish-green and then light brown. This starts at the top of the tree and progresses downward and from the outside in. &middotAnimal injury - dog urine can cause some browning and dropping of lower branches on arborvitae and junipers.
There are many different brands of cat flea collars. Generally, flea collars work by either emitting a toxic gas to the local area (head/neck of the pet) or by exuding chemicals that are absorbed into the animal's skin. Some flea collars have an Insect Growth Regulator (IGR), to prevent development of cat fleas, eggs and larvae.
Oral flea treatments are given in pill form every 30 days. They work in a similar fashion as the topical treatment, by breaking up the life cycle of the flea and prohibiting flea eggs and larvae from developing. Oral treatments can also be used in conjunction with bathing products to kill adult fleas.at flea products are the only sure way rid your cat and your home of those annoying irritants. General home care will aid in the effectiveness of any cat flea product that you choose. There are flea collars, topical treatments, oral treatments, shampoos and sprays. Any combination of these solutions can be productive.