The Wildcats climbed to sixth after a five-try romp in the capital in which they dominated the Broncos throughout a largely one-sided contest. And the Wildcats coach wants more of the same going forward.
"To see the improvements we have made from week one is really pleasing. There were times we needed to step it up and today we did," Agar said.
"We know we can attack and score from pretty much anywhere on the field, and it is our improvement defensively that pleases me most. We have some really tough games coming up and we need to keep that defensive effort going. We are certainly moving in the right direction and are confident we can do that."
Ben Cockayne grabbed the first try, taking a pass from Reece Lyne to romp home with less than a minute on the clock. But the Wildcats wasted a string of chances to stretch that lead in an error-strewn opening half.
After the break Wakefield finally made their dominance, Paul Sykes booting a penalty and then converting Danny Kirmond's close-range try. Cockayne, who bagged a hat-trick against Hull KR last weekend, then ran in his second.
There was no let-up in the misery for the hosts, with Peter Fox then going over in the corner seconds after Kieran Dixon had a try chalked off for the Broncos due to a knock on.
London produced little of note and it was no more than the Wildcats deserved when Richie Mathers ran in Wakefield's fifth try with five minutes remaining.
Broncos coach Tony Rea admitted his side need to improve and fast. He said: "The answers are on the inside for us. If you keep expecting the negatives then that is what you are going to get.
"We had chances to get into good positions today, but we did not take them. We have to stay strong, stick together as a group and find the positives."
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