You will use 4 oz. of Sevin Concentrate per gallon of water.
No, per the manufacturer Sevin concentrate when used on pear trees when fruit is present will not penetrate the skin. However, you do want to try and spray upper and lower leaf surface, between fruit clusters, and on small limbs and trunks only to the point of run off where the pest appear. Even though there may be some over spray when spraying it would not harm the pear itself. You would just want to be sure when you do harvest the fruit that you wash it well before using or eating.
You will mix 3.0 fl. oz. of Sevin Concentrate per gallon of water for apple trees. Be sure to spray upper and lower leaf surfaces and between fruit clusters and on small limbs and trunks to the point of runoff where pests appear. Repeat applications as necessary up to a total of eight times per year for tree fruits or five times per year for small fruits, but not more often than once every seven days. NOTE: To avoid undesired apple thinning delay use until at least 30 days after full bloom.
You will mix 1.5 ounces of Sevin Concentrate per gallon of water for grasshoppers.
According to the product label, you will need to use 4fl oz of Sevin Concentrate per gallon of water.
Per the product label, you will mix 1.5 fl. oz. of Sevin Concentrate per gallon of water and apply product in adequate volume to effectively cover both the upper and lower surfaces of the plant.